Don't use <imgs> for site/module log entry icons since that scales badly with long logs.
Norwegian: december -> desember.
Logging: Remove log notices after 7 days. Fixes [bug 6950].

Adds a background process that runns once every hour that removes
stale entries from the server event log.

The current configuration is to keep notices for 7 days, and all
other entries for as long as the server stays up.
Merge branch 'patches/bug6950' into devel

* patches/bug6950:
  Logging: Remove log notices after 7 days. Fixes [bug 6950].
Pike 8.0: More RSA and DSA fixes in SSL tasks.

Fixes [bug 7362].
Merge branch 'patches/pike8.0' into devel

* patches/pike8.0:
  Pike 8.0: More RSA and DSA fixes in SSL tasks.