synchronization with beta branch
Merge branch 'master' into ice-cream-sandwich
Merge branch 'ice-cream-sandwich' into microtypography
introduces intermediate class ZLImageSelfSynchronizableProxy
Merge branch 'master' into ice-cream-sandwich
Merge branch 'ice-cream-sandwich' into microtypography
synchronization with beta branch
Merge branch 'master' into ice-cream-sandwich
Merge branch 'ice-cream-sandwich' into microtypography