Misc. updates to the lancelot autotest framework

Misc. updates to the lancelot autotest framework

Moving more logic into the protocol and framework, easening
the burden on the autotest implementation.
Implementing several new features in the server and
report, like fuzzy matching and static baselines.

Change-Id: Iaf070918195ae05767808a548f019d09d9d5f8c0
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>