Merge branch 'release/1.2.0'
Merge branch 'develop'
Merge branch 'develop'

* develop:
  add note for loading time
  move examples up, add features
  update docs
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'release/2.0.0'
make sure we don't overwrite the width variable when unlocked
correctly rename less file
note that currently buggy with less v1.7.0
Merge branch 'develop'
Foundation may work viewport dependent -> unclear
optimise readme
prefixes for generated grid classes
custom prefix documentation
Release 2.1.0