Restore invisibility mixins
Delete experiemental visibilty mixins
Fixes issue #47
Tweaks to grid including adding .offset-0 classes and changing site-max-width
Fixes issue #42 -- no new grid page but old one is working
Lose extra file
New minified file for v2.0.1 distribution
Change screenshot to reflect new look
Version bump
Merge branch 'v2.0.1' into v2.0.2

Getting the 2.0.2 version updated with version bump
Show no shadow for `.btn-link` since it has no other button styles.