Ignore 'Torrent addition dialog' setting if the file doesn't exist:

Allows to post error message to log
[WIP] Implement open & select file in file manager
Add setting to ignore RSS rule matches for X days
Implement episode filter for rss downloader

Conflicts:
	src/rss/automatedrssdownloader.cpp
	src/rss/automatedrssdownloader.h
	src/rss/rssdownloadrule.cpp
Add tooltip to episode filter text edit
Fix linkers errors with AllowSetForegroundWindow function