Merge pull request #936 from moai/master

Synchronization of the branch.
Fix luagc_count in getMemoryUsage in moaiSim

see: http://pgl.yoyo.org/luai/i/lua_gc the value was just getting the bytes not the kilobytes.
Merge branch 'master' into 1.5-development
fix moaiimage crash when loading palletized png
Merge pull request #953 from moaiforge/pull_moaiimage_png_fix

fix moaiimage crash when loading palletized png
Added MOAIBox2DWorld:addRevoluteJointLocal which takes local anchorA and anchorB points, rather than a single world anchor point.
Merge pull request #959 from fivevolthigh/fvh-addRevoluteJointLocal

Added MOAIBox2DWorld:addRevoluteJointLocal
Merge pull request #970 from moai/1.5-stable

latest 1.5 stable
Merge pull request #954 from moai/1.5-development

1.5 development