Fixed issue with CSS chrome warnings and translations for block formats.
Fixed issues with setting the src image dialog field to a empty value.
Fixed issue with Chrome logging warnings about deprecated keyLocation property.
Fixed so hr menu item and toolbar button gets the same translation string.
Fixed so bullet list toolbar button gets the correct translation from language packs.
Removed redundant comma that breaks IE 7.
Fixed a few importcss bugs.
Fixed bug where IE would throw exception if selection was changed while the editor was hidden.