Automatic unit conversions are performed if necessary and possible.
Other small changes:
* Limit the number of emitted decimals to three.
* Added a function for converting a unitless number to a percentage.
This means that you can do the following now:
a
:font-size= percentage(14.0px / 12px)
:line-height= 1em * 20.0px / 12px
:padding= 1in + 36pt
:margin= 1in + ((72pt * 2in) + (36pt * 1in)) / 2.54cm
and get this:
a { font-size: 1.167%; line-height: 1.667em; padding: 1.5in; margin: 3.5in; }
