Improved detection of hashed releases.

- Added specific rejection code for 32 random characters to ignore all md5 and mixed-case hashes.
- Added NZBGeek hash format.
- Removed -RP from Release Group.
- Added test and fix for reversed title. Currently matching it based on a couple of patterns.
Merge pull request #74 from Taloth/hashed-releases

Fixed: Improved parsing of hashed releases