Updated HeaderFixer to the current year
Merge pull request #1297 from Unkn0wn0ne/headerfixer

Updated HeaderFixer to the current year
Fix AndroidVisibilityListener's Javadoc

Old description wasn't 100% accurate
Merge pull request #1298 from Unkn0wn0ne/patch-17

Fixed AndroidVisibilityListener's Javadoc
Merge remote-tracking branch 'upstream/master'