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
revert bower.json

because the tagged version doesn't include the dist files.
Fixed empty args matching for named variadics (e.g. `.mixin(@var...)`).
Merge pull request #1866 from seven-phases-max/fix-1852

Fixed empty args matching for named variadics.
Merge branch 'master' of https://github.com/deviprsd21/less.js
Fix tests, fix a bug in comparing values
Merge remote-tracking branch 'origin/master' into detached-rulesets