Fixed NumberValue so that it doesn't set it's Token type to DIMENSION
when it's a NUMBER.
Added a test for deep variables '@@x'.
Added unit tests form ValueProcessor.
Added a toBegin() to TokenListIterator to set it to the start of the list.
Added a parseList() function to LessParser for parsing lists.
Added imgbackground function that figures out the background color of
an image resource.
Added imgbackground function that figures out the background color of
an image resource.
Added selector interpolation.
Added examples for imgbackground() and selector interpolation.
Added ParseException.cpp.
Added linenumber and column attributes to the ParseException, to help
find the location of the parse error.
replaced AM_PROG_AR with m4_ifdef([AM_PROG_AR], [AM_PROG_AR]).
Merge branch 'master' of github.com:BramvdKroef/clessc