Added support for firefox osx font smoothing.

Related to issue #1591
Based on https://bugzilla.mozilla.org/show_bug.cgi?id=857142#c83
Signed-off-by: Martin Seeler <developer@chasmo.de>
Using recess property order (Fixes #1157)
Rebuilt assets
Pairing with Glyphicons
Closes #1806
Fixes #1256
Fixes #1257
Markdown flavours
Fixes #1338
Rebuilt assets
Markdown flavours
No import magic
Adding some tests :racehorse:
Trying Travis
Adding requirements
Less ambitious test schedule
Travis build image
Pandoccing
adding pagelines icon
merge conficts
first pass at changing icon- to fa-
getting stacked and rotated moved over to new prefix
final adjustments to changing css icon prefix
updating docs to use new css prefix
removing IE7, rewrote most CSS with all visual tests passing, removing no longer necessary bootstrap specific css