port flex from nib, fix incorrect image-replace alias introduced by #31
Added configurable IE support to normalize()
Ported Vertical Rhythm from Compass
Fix param conflict in establish-baseline()
demarcate private functions
Added normalize() fix for margin collapse error and aliased it to establish-baseline()
@import vertical rhythm above vendor for consistency
Fix accidental calls to nav() causing errors
Fixed a couple of parameter name conflicts
Fix accidental indentation
Merge pull request #39 from declandewet/addverticalrhythm

Add vertical rhythm module, IE fixes for normalize() and a normalize() margin collapse fix.
test vertical rhythm, conform internal functions to convention, change nav() to navigation()
:ship:
Make blockquote() more versatile - solution to #40
Merge pull request #43 from declandewet/blockquotefix

Make blockquote() more versatile - solution to #40
Added radial-gradient mixin
add radial gradient test