updated helpers to include unit-helper function. added strip units function
beginning work on grid functions
Merge github.com:edgincvg/momentum-css into dev-refactor
adding comment to helper file. updating gitignore
changed from tabs to spaces in test file. renamed _small-screen to _breakpoints
broke grid into separate file. renamed breakpoint file. updated readme
updated breakpoint css and styles
updating readme
removing extra semicolon