Merge pull request #1371 from selenamarie/bug898536-fix-sigsum-permissions

Fixes bug 898536 signature summary table permissions
fixes bug 899306 - RawCrash == ProcessedCrash === CrashData, r=rhelmer
fixes bug 899562 = allow more fields in processed and raw crash, r=bsmedberg
Merge pull request #1375 from selenamarie/bug899641-windows-nt-6.3

Fixes bug 899641 Add Windows NT 6.3 support
Working on fixing the sigsum middleware

* Refine the SQL for SignatureSummary middleware
* Added a connection close() because we aren't using the base class query()
* Adding tests for SignatureSummary* middleware calls