Upgrade to libGDX 1.0.1

 - Upgraded the versions of plugins and dependencies.

 - Move scope definitions to the parent POM.

 - Make the 'README.md' agnostic to version changes with a bit of
reformatting.

 - Switch RoboVM package from 'cocoatouch' to 'apple'.
See http://www.badlogicgames.com/wordpress/?p=3351 for details about
the libGDX updates to RoboVM 0.0.11, featuring new CocoaTouch bindings,
exposing iOS APIs and under a new package called "org.robovm.apple".

 - Add a 'nbactions.xml' for Netbeans custom actions based on the
'README.md'.