Code review comment for lp:~allenap/launchpad/kde-bugzilla-being-odd

KDE bugs returns tuples instead of mappings to XML-RPC calls. This causes the Bugzilla sniffer to fall over. I've changed it to consider anything other than a dict as unsupported (for API consideration). This means Launchpad will fall-back to the standard boring stupid Bugzilla support, which should work at least. This addresses bug 505958. I discussed this with Graham Binns briefly before implementation.

I also noticed that I could have a go at fixing Bugzilla._parseVersion() to simply extract the numeric parts of the version. This addresses bug 334980.

Lint free.

Test: bin/test -vvt 'external.*bug'