Add plugin hook 'contact_validate' to let plugins validate contact records
Require name or email for sql address book only
Merge branch 'master' of github.com:roundcube/roundcubemail
Let plugins state a validation error message
Fix typo in method name
Join many preg_replace() calls into one
Fix failing vCard import when email address field contains spaces (#1489386)
Add contact_listname hook to handle special name order

I can modify the addressbook_name_listing variable via main config or preferences_list_hook but I have to change the rcube_addressbook class to use the modified value. Some contry use special [name orders](http://en.wikipedia.org/wiki/Personal_name#Name_order) and we can handle them with this hook.
I changed the hook name to contact_listname as proposed by thomascube in the original PR#127.
Send last fetch time with 'refresh' requests and allow plugins to alter query parameters of http requests
Merge pull request #142 from Takika/patch-2

Add contact_listname hook to handle special name order
Decorate drop-down menus in datepicker title
Fix mime.types parsing (#1489391)
Allow to override popup options; return reference to popup dialog