Removed dependencies on the original font images

-Whoops, they shouldn't have been there in the first place
Fixed and improved xorshift128+ implementation.
Update CHANGES
Improved javadoc.
Merge branch 'random' of https://github.com/davebaol/libgdx into random
Improved PriorityQueue when only unique elements are allowed.
Should be able to create a custom RenderContext
Clarified in javadoc that RandomXS128 is not thread-safe.
Merge pull request #2115 from davebaol/random

Fixed and improved xorshift128+ implementation.
Merge pull request #2124 from davebaol/queue

Improved PriorityQueue when only unique elements are allowed.
Added support for multiple recipients.
Update Intersector.java

Added method for getting intersection point for two 2D rays.
Return actual path instead of empty string synonym

See #2133 for details.
Fix FilesTest - the Local files root should exist.
catch error when MeshPartBuilder.patch() would fail silently
Slightly changed State API to properly support multiple recipients.
Fix size-setting methods ignoring height

In ui.Container. I believe this wasn't intentional.
Merge pull request #2138 from Darkyenus/patch-1

Fix size-setting methods ignoring height
setBackground(null) has caused layout() to NPE
Merge pull request #2139 from Darkyenus/patch-1

setBackground(null) on Container has caused layout() to NPE