prefix function
rewrite flex function
rewrite user-select function
don't rely on bootstrap for box-sizing function
rewrite transforms functions
useful px-to-em conversion function
replace calls for old displayflex function
fix old flex function calls
move align elements fort better ordering
add support for flex-wrap to flexy function
Merge pull request #3409 from circleci/improve-less-functions

Improve less functions
Merge commit '4379959d0de42dcc23e9f8115d1c75702040d953'