Add iOS web clip icons
optimize image file size on iOS web clip icons
Add tooltips to explain some icon-only controls
Revert "Add tooltips to explain some icon-only controls"

This reverts commit 96fb0c2ce1607457fc85ca21082cca1ef5a9fead.
Merge pull request #46 from daprice/master

Add web clip icons for iOS
Merge branch 'master' into devel