Add unix socket support for SphinxAPI connection

Feel free to edit the comment as needed, I'm not a very good writer, lol.

I also replaced is_numeric() with ctype_digit() because it is a faster/simpler check that is also more accurate when dealing with ports.
Update Changelog
Setting default release completion value to 95.
Fixing typo.
Refactoring part of tmux monitor to improve readibility and performance slightly.
Fixing some references to 'missed_parts_' replacing 'partrepair_' due to over-caution.
Updating Changelog.
Updating Changelog.
Updating Changelog.
Update README.md
Feature Request: Add to My Movies #1530
Merge branch 'gregorystorme-dev-gregorystorme-1530' into dev
Updating Changelog.
Merge branch 'dev' into next-master

Conflicts:
	Changelog
	nzedb/build/nZEDb.xml
Merge branch 'sphinxapi_unix_socket' of https://github.com/josh4trunks/nZEDb into josh4trunks-sphinxapi_unix_socket

Conflicts:
	Changelog
Fixing for code standards. Adding additional sanity checking.
Updating Changelog.
Fixing user_roles data loading SQL, for new installs.
Fixing user_roles data loading SQL, for new installs.
Fixing user_roles data loading SQL, for new installs.