Update Columns Shortcode

The column shortcodes are a little stiff and are not allowing the full flexibility of the column system. I'd like to the option to make the columns both the first and the last in the row so a full 12 span column can be used. Extra extendability for collapsing the column would useful too.
Merge pull request #31 from aaron-longerdays/patch-1

Update Columns Shortcode
Merge pull request #33 from ethanhinson/master

Fix for Issue #32 and #34. Repeating Image Fields, Value for jQuery UI Sliders.
fix regex
Update shortcodes.php
Update reactor.css
Update content-header.php
bump version
Add push/pull arg. to columns
Merge branch 'add-push-pull-to-columns'
Add ja translation
Merge pull request #49 from Ikaring/master

Japanese translation
Merge pull request #48 from Ikaring/add-push-pull-to-columns

Add push/pull class to columns
Merge pull request #1 from awtheme/master

Merge Latest from base