Add the improved error handling to torrent providers.
Change cache_db to always include db upgrade statements when running SG for the first time.
Change split newznab limit logic into a reusable function, hit_limit_update() and use in BTN prov.
Change tweak CSS to make things a little neater with button spacings.
Add the actual time when current limit will expire to the UI.
Change instead of terminology "errors", use "failures".
Change improve BTN error handling.
Change ensure provider name is output to log at times where it wasn't.
Change ensure failed request URLs and POST params are output to log.
Add time of last failure + type to should_skip log message.
Change code DRY and simplification for improved readability.
Change occurrences of "error" to "fail" for consistency.
Add tmr limit handling to omg and change log_failure_url level to warning.
Change log the failed URL when an API hit limit is reached.
Change "hit" to the more universally generic "tmr" - Too Many Requests.
Change Db columns containing "hit_" are renamed "tmr_"
Change add nzb.org BoxSD and BoxHD categories.
Change improve category exclude logic for newznab.
Change add WEB-DL category to autoselect categories for newznab.
Change comment out HEVC category parsing since it's not auto selected.
Add BitMeTV torrent provider.
Add TVChaosUK torrent provider.
Add HD-Space torrent provider.
Add Shazbat torrent provider.
Remove Animenzb provider.
Change use tvdbid for searching usenet providers.
Change consolidate global and per show ignore and require words functions.
Change "Require word" title and notes on Config Search page to properly describe its functional logic.
Add "Reject Blu-ray M2TS releases" to BTN provider.
Add regular expression capability to ignore and require words by starting wordlist with "regex:".
Add list shows with custom ignore and require words under the global counterparts on the Search Settings page.
Fix failure to search for more than one selected wanted episode.
