Autoremove-torrents

* Supported Python 2.7. (29)
* Stopped supporting Python 3.4. (kennethreitz/requests5092)

* Fixed missing parser files. (32)
* Fixed association of operators. (32) Now the operator and and or are guaranteed to be left-associative.

* Fixed bug: Program gets stuck when there are a lot of torrents in qBittorrent client (22).
* Fixed bug: Duplicated logging in status filter.
* Log system was updated:
- Log path can be specified (Use ``--log`` argument, e.g. ``--log=/home/jerrymakesjelly/logs``) (23).
- Logs are stored in different files by day (Format: ``autoremove.%Y-%m-%d.log``).
* Changed the word ``seed`` to ``torrent`` (25).
* Removed uncessary debug messages.

* Added new filter: Torrent Status
* Added new condition: Maximum number of torrents

* Added installing information.