NEXUS-6278: Lowering loglevels

With PR
https://github.com/sonatype/nexus-oss/pull/319

Logging was changed/added too. Undoing log level change.
NEXUS-6279: request#pathInfo not decoded but should

Bumping to sisu-guice 3.1.10 is it contains the
fix for this.
Merge pull request #352 from sonatype/NEXUS-6278-logspam

NEXUS-6278: Lowering loglevels
Merge pull request #356 from sonatype/NEXUS-6279-pathInfo-decoding

NEXUS-6279: request#pathInfo not decoded but should
Merge remote-tracking branch 'origin/master' into rapture