renamed games folder to entries folder (also contained frameworks, libraries, ...) and added to the backlog

entries/libgdx.md

@@ -0,0 +1,17 @@
+# libGDX
+
+_Desktop/Android/BlackBerry/iOS/HTML5 Java game development framework._
+
+- Home: http://libgdx.badlogicgames.com/
+- Media: https://en.wikipedia.org/wiki/LibGDX
+- State: mature
+- Download: http://libgdx.badlogicgames.com/download.html
+- Keywords: framework
+- Code repository: https://github.com/libgdx/libgdx.git
+- Code language: Java, C++, C
+- Code license: Apache-2.0
+
+## Building
+
+Maven, gradle
+