rebuild themes with autoprefixer, closes thomaspark#359

3.3.0 -> 3.3.1

cosmo: fix selector bug, tweak list-group-active-border

Merge pull request thomaspark#309 from polmabri/gh-pages

Update composer.json to suggest "robloach/component-installer" instead of require it

Merge pull request thomaspark#310 from PeterDaveHello/patch-1

make CI build faster

add paper and sandstone to composer and gruntfile

fix tooltip and popover in test

bump version to 3.1.1+1

3.1.0 -> 3.1.1