added ios bookmarklet
added correct button url
changed ios bookmarklet page title and instructions
fixed overflow on create annotation view in the right panel
Merge remote-tracking branch 'origin' into feature/21-test-mediathread-on-ipad

Conflicts:
	media/css/mediathread.css
Merge pull request #16 from appsembler/feature/21-test-mediathread-on-ipad

#21 - make the bookmarklet compatible with iOS devices