update RTorrent compatibility for 0.9.x

See merge request SiCKRAGE/sickrage!37

Only attempts to add magnet URL to external API if does not exist in external API.

Converted build/deploy pre-release/release jobs to be manually triggered.

Disabled webpack stage for reviewing merge requests, webpack needs to be done manually before submitting a merge request online.

Disabled webpack stage for reviewing merge requests, webpack needs to be done manually before submitting a merge request online.

# Conflicts:
#	.gitlab-ci.yml
#	package-lock.json
#	package.json
#	setup.cfg
#	sickrage/core/webserver/static/js/core.min.js
#	sickrage/version.txt

Merging Pre-Release v9.4.184.dev9

Closes #425

See merge request !29

Added regex for semantic versioning along with matching of each section of the version string to see if remote is greater then local version.