* Filtering torrents in transmission-remote
- Add `-F <filter>` option to filter selected torrent
- May filter on uploading/downloading, label, torrent name,
and upload ratio, for now
- Filters may be negated
- Filters may be chained (logical and)
- Add `-ids` option to print ids of filtered torrents.
* Add "partially wanted" filter to transmission-remote
* applied changes from https://github.com/Elbandi/transmission/tree/elbandi/labels to official transmission repo
* Fix compilation errors
* Address review comments
Changed `tr_ptrArray* labels` to `tr_ptrArray labels`;
Removed tr_ptrArrayNew() tr_ptrArrayDup() tr_ptrArrayFree()
Use tr_strsep() to split string by delimiters
Update transmission-remote.1
Update rpc-spec.txt
* Fix warning, address comments
* Rebase, fix formatting and address comments
Use uncrustify to format changed files
Fix "const <type>" -> "<type> const"
Fix small comments
* Lock torrent for setLabels, check for duplicates
* Check for empty labels in daemon
* Stop on first error
