Bug 1059331 - Reftest analyzer links now actually opens up visualization

Note that this implementation is somewhat suboptimal in that it loads the
entire log and does the filtering client side afterwards. Ideally in the
future we would preparse the log on the treeherder end of things beforehand
for faster loading times.
Merge pull request #148 from wlach/1059331

Bug 1059331 - Reftest analyzer links now actually opens up visualization