Fix compile time warnings

Merge branch 'master' of github.com:johanmattssonm/birdfont

Merge branch '2.x' of github.com:johanmattssonm/birdfont into 2.x
Version 2.16.12

Merge ../birdfont-2.x

Scrollbar

White space fixes

Merge branch 'master' of github.com:johanmattssonm/birdfont

High resolution rendering of text and graphics
This commit fixes retina display issues.

Create fontconfig cache in a background thread

Platform independent overwrite dialog

Merge branch 'master' of github.com:johanmattssonm/birdfont

Use new color picker in theme tab

Hide cursor in gtk window

Hide cursor

Hide cursor

Platform independent tool tip

Merge branch 'master' of gitorious.org:birdfont/birdfont

Platform independent text input

New dialog for saving fonts on exit

Export callback

Merge branch 'master' of gitorious.org:birdfont/birdfont

Conflicts:
	libbirdfont/BirdFontFile.vala

Copy and paste in name and description tab

Merge branch 'master' of gitorious.org:birdfont/birdfont

Speed optimization for path simplification and other improvements

New file chooser & keep expanders open