maildir_store_get_folder_sync: Fix a use-after-free issue
updated kn.po
Bug #720676 - [IMAPX] Do more searching server-side (take ][)

The first patch caused server-side searching also for cases where all
data were available locally, which made searching slower. This tests
first if everything in match-all is available locally, and if so, then
it uses local search, rather than the server side.
Updated Greek translations
Bug #721030 - WebDAV: download_contacts() leaks
Bug #720751 - camel_tag_set() doesn't copy tag's name properly