diff --git a/Cargo.lock b/Cargo.lock
index 42ea28a..2f23ba5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,8 +1,3 @@
-[[package]]
-name = "adler32"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
@@ -26,29 +21,6 @@ name = "bitflags"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "build_const"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "bzip2"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bzip2-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "bzip2-sys"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "cc"
 version = "1.0.25"
@@ -81,18 +53,10 @@ dependencies = [
  "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "crc"
-version = "1.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "build_const 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "csfml-audio-sys"
 version = "0.4.0"
-source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#510d47bcb55b2587a760fb4630b733780eb20385"
+source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#657654e2d8b65a37874639ece70381a2cd062b88"
 dependencies = [
  "csfml-system-sys 0.4.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
  "sfml-build 0.2.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
@@ -101,7 +65,7 @@ dependencies = [
 [[package]]
 name = "csfml-graphics-sys"
 version = "0.4.0"
-source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#510d47bcb55b2587a760fb4630b733780eb20385"
+source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#657654e2d8b65a37874639ece70381a2cd062b88"
 dependencies = [
  "csfml-system-sys 0.4.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
  "csfml-window-sys 0.4.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
@@ -111,7 +75,7 @@ dependencies = [
 [[package]]
 name = "csfml-system-sys"
 version = "0.4.0"
-source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#510d47bcb55b2587a760fb4630b733780eb20385"
+source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#657654e2d8b65a37874639ece70381a2cd062b88"
 dependencies = [
  "sfml-build 0.2.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
 ]
@@ -119,27 +83,12 @@ dependencies = [
 [[package]]
 name = "csfml-window-sys"
 version = "0.4.0"
-source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#510d47bcb55b2587a760fb4630b733780eb20385"
+source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#657654e2d8b65a37874639ece70381a2cd062b88"
 dependencies = [
  "csfml-system-sys 0.4.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
  "sfml-build 0.2.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
 ]
 
-[[package]]
-name = "curl"
-version = "0.4.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "curl-sys 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "schannel 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "socket2 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "curl-sys"
 version = "0.4.13"
@@ -154,15 +103,6 @@ dependencies = [
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "flate2"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide_c_api 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "git2"
 version = "0.7.5"
@@ -187,23 +127,6 @@ dependencies = [
  "unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "lazy_static"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "libc"
 version = "0.2.43"
@@ -260,35 +183,6 @@ name = "matches"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "miniz_oxide"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "miniz_oxide_c_api"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "msdos_time"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "openssl-probe"
 version = "0.1.2"
@@ -315,11 +209,6 @@ name = "pkg-config"
 version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "podio"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "redox_syscall"
 version = "0.1.40"
@@ -343,19 +232,10 @@ dependencies = [
  "sfml 0.14.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
 ]
 
-[[package]]
-name = "schannel"
-version = "0.1.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "sfml"
 version = "0.14.0"
-source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#510d47bcb55b2587a760fb4630b733780eb20385"
+source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#657654e2d8b65a37874639ece70381a2cd062b88"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "cmake 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -363,25 +243,13 @@ dependencies = [
  "csfml-graphics-sys 0.4.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
  "csfml-system-sys 0.4.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
  "csfml-window-sys 0.4.0 (git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml)",
- "curl 0.4.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "zip 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "git2 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sfml-build"
 version = "0.2.0"
-source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#510d47bcb55b2587a760fb4630b733780eb20385"
-
-[[package]]
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-version = "0.3.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
+source = "git+https://gitea.tforgione.fr/free-rusty-maker/rust-sfml#657654e2d8b65a37874639ece70381a2cd062b88"
 
 [[package]]
 name = "strsim"
@@ -406,16 +274,6 @@ dependencies = [
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 ]
 
-[[package]]
-name = "time"
-version = "0.1.40"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "unicode-bidi"
 version = "0.3.4"
@@ -454,16 +312,6 @@ name = "vec_map"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "version_check"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "winapi"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
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 version = "0.3.6"
@@ -473,11 +321,6 @@ dependencies = [
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-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-
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 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
@@ -488,76 +331,44 @@ name = "winapi-x86_64-pc-windows-gnu"
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-dependencies = [
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