Parsing tatt's report file

When running tatt generated *-useflags.sh, if something failed, we always register it as just failed. But it could be some other reason, and not just "fail".

• Create a new template for tatt for generating nearly JSON report file.
• When the job is done, parse this file, and "investigate" why it failed.
• Report on IRC the fail reason.
• Add the bug number to DB, so it won't be scanned but also not as failure. NOTE: maybe reporting as fail in DB is also good?

This is a preparation work for auto fetching failure reports and opening bugs for them.