Improve mbox format import: don't expect empty lines after each message
Replace &nbsp; entities when converting to text
Don't trigger 'select' event twice when selecting a list item
Allow to force-load plugins which have been loaded but not initialized before
Implement ArrayAccess interface for conveniently accessing rcube_result_set as array
Added optional separate interface for out-of-office management (#1488266)
Remove debug code
Fix list-input fields in Vacation interface