add analytics
Merge branch 'master' into gh-pages
add twitter sharing button
merge master & readd ga
add twitter sharing to game over screen
merge master
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
remove repeated ga call
add hashtags on 2048
fix hashtag
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
merge iphone version
Merge branch 'master' into gh-pages
add btc donate button
remove coin widget