speed optimization
Merge branch 'master' into ice-cream-sandwich
Merge branch 'ice-cream-sandwich' into yota2
fixed 'duplicates issue'
Merge branch 'master' into ice-cream-sandwich
Merge branch 'ice-cream-sandwich' into yota2
release date
Merge branch 'master' into ice-cream-sandwich
Merge branch 'ice-cream-sandwich' into yota2