Adding gsub function
Adding gsub function
Adding capture group test case
Merging remote
Fixed incorrect property interpolation for certain variable types, updated tests.
Improved min/max function, 2 new Built in function
Improved min/max function, 2 new Built in function

max(0, 1em, 2, 4px) //returns 4px on the basis of first enter basis. Previous calculation would result in max(2, 1em, 4px). Here, 2 and 1em is compared, 2 is returned. then 2 and 4px is compared. Resulting in 4px. max(0, 1em, 1, 4px) //max(1em, 4px)
Update functions.js

max(0, 1em, 2, 4px) //returns max(2, 4px) on the basis of first enter basis, as 2 gets em unit. Now em and px are incompatible till latest version of LESS.
Improved min/max function, 2 new Built in function

max(0, 1em, 2, 4px) //returns max(2, 4px) on the basis of first enter basis, as 2 gets em unit. Now em and px are incompatible till latest version of LESS.
Error handlers for min/max functions
Pixel conversion added.
Consistency fixes
max/min Bugfix

max(0, 1cm)// 0 ... 0 assumed unit "m". on comparison 0.01m was less than 0
Removal of zero, unitonly changed to obtain
Check value of elements before getting args

When parsing, mixin.call() doesn't need to look for mixin.args if there weren't any elements
Cache match elements to speed up compiler
Fix grunt test, declare i
Improved missing `(` and `{` error detection.
removed debugger statement mistakenly left out.
Improved positioning of "missing closing `)`" error.