Update unrar2 lib to 0.99.3

Fixes #2930
Unrar cleanup
Added ability to configure Pushover custom sounds.
Removed empty line
making the scanner follow symlinks
Merge pull request #3051 from bazbjzy/develop

Added custom sounds ability to Pushover Advanced Settings
Merge branch 'develop' of github.com:RuudBurger/CouchPotatoServer into develop
Use correct id returned from automation add. fix #3050
Hotlink userscript gif
Check if folder exists in tagging

Fixes #3069
Re-add path
Display charts (such as from imdb, blu-ray.com) on home page.
Merge pull request #3070 from mano3m/develop_fix_ignore

Check if folder exists in tagging
Cleanup and default charts
Merge branch 'refs/heads/mikke89-charts-v2' into develop
Merge branch 'develop' of github.com:RuudBurger/CouchPotatoServer into develop
Merge pull request #3042 from mano3m/develop_update_unrar

Update unrar2 lib to 0.99.3
Merge pull request #3052 from jeremiahelroy/develop

making the scanner follow symlinks
Only list inactive downloadstatus support once
Failed deleting from wanted