Some bugs in your demo

[smartcorestudio]

The plugin seems to be VERY useful. But here: http://albatrossdigital.github.io/widgetbootstrap/
there are some bugs (Tested on Chrome and Firefox)

1. Entering "Source" and going back to WISYWIG mode break columns
2. Seems like the "Alert box" doesn't work at all

And a suggestion: maybe it's better not to insert blank images by default into the columns?

[smartcorestudio]

Error from Firebug:
"Error: [CKEDITOR.dialog.openDialog] Dialog "widgetbootstrapAlert" failed when loading definition.
http://albatrossdigital.github.io/ckeditor-sandbox/plugins/dialog/plugin.js
Line 3036"

[malekisadegh]

1-in \ckeditor\plugins\widgetbootstrap\dialogs just rename the .js file to "widgetbootstrapAlert.js"
2-in "widgetbootstrapAlert.js" file rename the dialoge name to "widgetbootstrapAlert" like this
CKEDITOR.dialog.add( 'widgetbootstrapAlert', function( editor ) {...
3.in "widgetbootstrapAlert.js" file edit line 3 like this
alertTypes = CKEDITOR.config.widgetbootstrapAlert_alertTypes,