Create reindex.py

Based on annotator-store's reindex[er].py, but with our models, and also
configuring settings (custom analysers etc.)
Give helpful message on MergeMappingException
Add command reindex to script.py
Update warning message
Fix behaviour on error
log.fatal -> log.critical
Remove d3.js and yepnope.js from license and notice

We are no longer using these libraries, so they have been removed from License and Notice.
Adding some names to the account blacklist
Add KaTex to License and Notice
Merge pull request #1744 from hypothesis/license-cleanup

Update License and Notice files
Simplify reindexer.py using annotator-v0.13
Merge pull request #1715 from Treora/reindex

Create reindex.py, add warning on mapping conflict
Move helpers from init to app and config modules

No behaviour changes.
Avoid __init__.py files in test directories

http://pytest.org/latest/goodpractises.html
Move notification test into test subdirectory
Use environment overrides in h.script
Turn on streamer, use local queue

Until we deploy nsq, use the local queue. Use the streamer or else
the stream doesn't work at all.
Fix __all__ and prospector errors
Fix mistake setFocus -> setFocused
Show privacy dropdown even on empty permissions

It is fine if the permissions are initially undefined.
Fix #1747