RSS: make more sense to default config
RSS: make more sense to default config

* Change default separator to `|` as used by Topic plugin.
* Show links with manual calling and automatic announcement.
    * In most of cases we want to know where does new RSS feed title point to...
Ban3/Limnoria,ProgVal/Limnoria-test,Ban3/Limnoria,ProgVal/Limnoria-test