Fix for "other" placeholder text clipping.

Change-Id: I6591b8cc9b6f72598921affc5889d7baed4c57c2
Update to wikifont handling and editing CC copy.

Split out supplemental font glyphs to separate font file.

Updated licence copy on preview page to include CC glyph.

"Log in" text in license copy now now tappable to enable
user to log in. Note that login interface will be restyled
in upcoming story.

Change-Id: I55ebfcd24d57e646b0962d3ce27241d08c3ba095
Merge branch 'wikifontUpdate' into wikifontUpdate2