Bug 987872 - Update to Fira 3.109
Fix negative-width glyphs (force negative advances to zero instead).
update line-height metrics to match our version of 2.001
Merge pull request #50 from jfkthame/fira-3.109-hacked

Fira 3.109 hacked to fix negative advances, line height metrics
Bug 951593 - Move icon font from gaia [BB] to moztt
Merge pull request #22 from rnowm/951593

Bug 951593 - Move icon font from gaia [BB] to moztt r=mwu
Revert "Merge pull request #22 from rnowm/951593"

This reverts commit dc5ca96695cab87b4c2fcd7c9f046ae3415a70a5, reversing
changes made to 96cdde4b5b5d8d3785b36c3c68cd746aff3005cc.
Merge pull request #52 from wilsonpage/951593-backout

951593 backout
Bug 775060 - Add Latin Modern Math font
Bug 775060 - Add OTF version of Latin Modern Math.