Fixed process_method issue #296

Fixed bug where it would detect the incorrect fork branch due to improperly set constants

Adds ability for user to set process_method from cfg file, leaving it empty defaults to sickbeard's process method from its config.
Merge branch 'clinton-hall/dev'

Conflicts:
	autoProcess/nzbToMediaEnv.py
Fixed bug in autoSickBeardFork where it was improperly returning values.
Fixed constants for default fork as it has no process param but does have method.
Clean up of misc files
Added in code to delete params that are not being used before we pass them to SB this way we don't have any potential issues arise from passing a NoneType param
Changed autoFork to default to auto-detection if it fails to properly get the config value for fork or one is not set
Merge pull request #299 from echel0n/dev

Bugfixes for auto fork feature