Fix crash for call runAnimation() in CCBAnimationManagerDelegate::completedAnimationSequenceNamed; Set mRunningSequence to NULL before any runAnimation() call;
fixed #1553: fixed a memory leak in CCControlButton.
Merge pull request #1868 from dumganhar/iss1553-cccontrolbutton-leak

fixed #1553: fixed a memory leak in CCControlButton.
fixed #1639:add CCBEaseInstant
Merge pull request #1869 from minggo/iss1639_CCBReader

fixed #1639:add CCBEaseInstant
Merge branch 'gles20' of https://github.com/tiantian20007/cocos2d-x into pr1757
Updated AUTHORS.
Merge pull request #1870 from dumganhar/pr1757

Fixed a crash for call runAnimation() in CCBAnimationManagerDelegate::completedAnimationSequenceNamed
fixed #1670: Fixed memory leak in CCBReader.
Merge pull request #1871 from dumganhar/iss-ccb-leak

fixed #1670: Fixed memory leak in CCBReader.
ignore unpacked glew
do not overwrite existing resources in TestLua
add sqlite3 to dependencies
Merge pull request #1875 from ivzave/lnxgitfix

keep working tree clean after build (linux)