Release 1.3.4

Merge pull request #56 from chrishouse/master

Fix bug that disallowed @import statements to use root relative paths

merge remaining commits from #49

bump package and improve minified file

Better IE version detection and base font calc.

IE7 XHR fix

Fixes calculation bug for partial values and !important support.

updating pattern to respect !important

adding PR#44 which cleans up the removeComments function

Merge pull request #42 from danReynolds/ImportSupport

Import support