Refactor multi-threaded autocomple contact searching to make it available for other purposes, too
Prepare message list to display IMAP folder
Support globally unique message UIDs with IMAP folder name appended
First attempt to search in multiple folders; do it multi-threaded using pthreads if available
Minor improvements to threaded searching
Redirect after HTTP authentication

Allow to redirect to the previous QUERY_STRING after HTTP authentication.
Refactor multi-threaded autocomple contact searching to make it available for other purposes, too
Prepare message list to display IMAP folder
Support globally unique message UIDs with IMAP folder name appended
First attempt to search in multiple folders; do it multi-threaded using pthreads if available
Minor improvements to threaded searching
Fix typos
Merge branch 'dev-multi-folder-search' of github.com:roundcube/roundcubemail into dev-multi-folder-search
after rebasing to master
Remove merge conflict
Fix sorting and paging in cross-folder searches
Make message pagenav (prev/next) work with sorted multi-folder search results
Handle combined UID-folder identifiers in rcube_imap class
Append per-folder search results to global index but only if it has matches
- Make search scope selectable in UI
- Disable thread mode when searching over multiple folders
- Encode UID values for HTML message row identifiers
Fix row UID handling in list widget