Update lessc.inc.php

Add support for the rem unit
add contrast function #330 thanks @kaystrobach
Merge pull request #323 from PeterKnight/patch-1

Add support for the rem unit
Added: red(), green(), and blue() functions, they work much like hue(),
	saturation() and lightness() except that they return a unitless
	scalar between 0 and 255 for their respective color components,
	much like the expected inputs to rgb()
Added: tests for new functions to colors.less and colors.css
"transparent" is a shorthand for rgba(0,0,0,0)

http://www.w3.org/TR/css3-color/#transparent-def
Merge pull request #336 from nyordanov/master

"transparent" should be considered a shorthand for rgba(0,0,0,0)
remove -q
Add branch-alias

This way people can require "0.3.*" and get stable vs unstable
versions depending on their minimum-stability, without having to
deal with the pains of dev-master.
Merge pull request #368 from igorw/patch-1

Add branch-alias
Add support for media query variables #335
add test for variable in media
add unit function, fixes #367
support nested interpolations #345
support interpolation inside of selectors fixes #370 #372 #369 #356
performance boost for selector parsing with interpolations
fixed a typo
Merge pull request #381 from nyordanov/master

Minor typo in toRGB($color)
version bump
remove mysterious line, fix #384
Update docs.md

Changed typo "an" -> "and"