Merge pull request #67 from Taloth/develop

Various fixes
New: Search for all missing episodes
Log reasons a release was rejected after all specs have processed
Fixed: Ended series will be refreshed from trakt every 30 days instead of daily
Fixed: Downloading log file asking for password when authentication is disabled
Fixed: Only clear readonly flag when file has readonly flag
Only search for monitored missing episodes
Fixed: Do not prevent adding of indexer when API request limit was reached
New: Added drone factory rescan button to Wanted
Call DiskScanService.Scan directly
Fixed: Calendar will show all downloading instead of top 15