Merge branch 'release/v3.3.0' into develop
Made vertical rhythm optional
removed animations from mixins
removed timing functions
Removed obsolete inline block mixin
Added Legacy flags
Modified rem mixin to handle all available values possible
Mixins:
- Added multi-rem mixin, to remmify multiple properties in one swoop
- cleaned up mixin code
Removed margin-bottom & m-height mixin.
Removed position mixin in favor of multi-rem
Updated mixins to most recent formatting guidelines
Removed link complex & split module
removed deprecated classnames, grid--rev properly implemented
input firefox line-height bug
Revisited margin bottom classes
Fixed #36
Updated margin bottom classes
Fixed #39
Reworked Arrange module to prevent some issues.
Added arrange collapse responsive classes
Put visuallyhidden based on breakpoints behind responsive flag
Added text modifyers based on breakpoint
Added collapsed media
Divided helpers into sections