Add support for FK kerning table

Fix code for loading TTF and OTF fonts

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

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

Use other types of graphical objects

The previous version uses only simple paths this commit makes it possible to
add other objects like circles, rectangles and text. The refactoring
is the first part of the full SVG implementation.

White space fixes

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

Use webfont values for decender and ascender in TTF fonts

Load fallback font data from a list of TTF fonts

Fallback font

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

Conflicts:
	libbirdfont/StrokeTool.vala

Remove points on points in TTF export

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

Fix canvas size on SVG image export and other bug fixes.

Fix memory leaks

Fix bugs in load and save code

Use quatratic control points for estimating SVG arc instruction before converting TTF

Save, export and load fonts in background threads

Add new points on path from end point to start point

Move progress indicator to tab bar

Convert horizontal lines to the new coordinate system
This commit does also add code that removes objects without an area before
exporting TTF fonts.

Draw outline of paths by tracking mouse movements
This commits adds a new pen tool that lets the user draw shapes on free
hand in contrast to the pencil tool.

Efficient parsing of the kern table

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

mac issues, including a more permissive license for libbirdfont