Getting the repo set up from clean

[pfrazee]

Two things that slowed me down:

• Not knowing to run node scripts/es_reindex.js after adding tags.
• The search page filters out 'forked' repos by default. That's probably good behavior, but the test post-commit-hook pulls in repos which are all forks (or which it thinks are all forks, I haven't looked closely). That meant I had empty results for a while without knowing why.

[pfrazee]

After reading through the code, it looks like you might not have to run reindex after adding tags (the code is certainly there to index on add). That means I may have just been confused about the 'forks' filter.