Add container shortcode, document shortcode
Merge pull request #50 from robinwo/master

Add container shortcode, document shortcode
Merge pull request #47 from shaddowgh/master

add xclass to row shortcode
Merge changes from Dev branch
Merge pull request #52 from filipstefansson/dev-merge

Merge changes from Dev branch
Update grid documentation

Indicate that [container] shouldn't really be nested if your theme
already uses a container.
Update README.md
Merge pull request #1 from filipstefansson/master

update to master