Untaggled a locking issue that was glitching the main thread when asking for frame switches in the tile quad loader.
Hooked up an animated weather example.
Fixed a cleanup bug.
Merge branch 'refs/heads/wg_base/develop' into develop

Conflicts:
	WhirlyGlobeSrc/WhirlyGlobeComponentTester/WhirlyGlobeComponentTester.xcodeproj/project.pbxproj
Updated WX shader