Updates tvdb_api library to version 1.9

Most notably this adds support for returning a show using the DVD order instead of the airdate ordering.
Pep8
Fix convert airdate: strptime %b uses locale abbrevations
Make it safer
Change non required api key routine

Treat apikey is '0' as non required apikey
Don't add new provider without name, url, key
Change find added/removed items and update with mass action

Change compare remote to local for added items
Add compare local to remote for removed items
Add provider column
Add mass action to update database
+ pep8
Merge branch 'change_add_provider_catIDs_needAUTH' into development
Merge pull request #743 from smeggingsmegger/branch-update-tvdb_api

Branch update tvdb api
Fix provider ID starts with number, change to quoted table name
Merge branch 'pre_change_fix_TVRage_dev' into test-has_index-se_update-pp_rules-catID
Merge branch 'pre_fix_tvcache_quoted_search_provider_6box' into test-has_index-se_update-pp_rules-catID