Added coordinate properties for objects

Now, reading out the values x and y for objects is possible without the use of specific subclasses of MapObject.
GLFW backend input refactoring, now works with AWT + OSX.
Merge remote-tracking branch 'origin/master'
Javadocs.
Fixes for stupid Mac.
JARs should have never been committed.
fetch.xml needed mkdirs, ignore GLFW backend libs.
fixed build, jglfw backend is now included, fetches latest jglfw.jar and jglfw-natives.jar from the build server
more fixes
Update ScrollPane.java
fixed dependencies of android projects
Merge pull request #282 from seroperson/master

StackOverflowError in ScrollPane#setWidget & small changes
Enable custom map loaders to setOwnedTextures when not residing in
the *.tiled namespace
GLFW backend fixes, features.
Merge remote-tracking branch 'origin/master'
Fixed to match backend.
GLFWFTW
Put back AWT for getting DPI.
Merge pull request #283 from manuelbua/tiledmap-patch

Switched modifier to public
Adds a way to retrieve the number of layers