add log parsing status handling
Merge branch 'master' into log-parsing-status
let authenticated users trigger a parse-log task
change the build system type detection to not rely on the ref data signature

The logic to detect the build system type was based on the reference
data signature on the job table to match at least one signature on the
reference_data_signatures table. This is not always true as reported in
https://bugzilla.mozilla.org/show_bug.cgi?id=1033107.
The new logic is inspecting the reference_data_signature table to
retrieve a dictionary of repo => build system type that is cached.
Merge pull request #173 from mozilla/log-parsing-status

add log parsing status handling
enable automatic retries for the parse-log task
fix bug 1035212: fix regex errors.
Merge pull request #177 from mozilla/1033107-quickfix

change the build system type detection to not rely on the refdata signature
merged with master