Fix leftover schema.sql issues.
Specify a temporary dir for the genotype worker

This is useful because the Postgres process in our deployment can't
access the e.g. /tmp dir Python writes tempfiles to by default. Now we
can specify where our intermediate CSV files are written to so that
postgres can read them.
Remove debug statement.
Merge pull request #242 from hammerlab/use-tmpfile-config-for-psql-copy

Use tmpfile config for psql copy
header_spec -> extant_columns
Fix query columns
Merge pull request #252 from hammerlab/header-spec-to-extant-columns

header_spec -> extant_columns
Allow VCFs to be overwritten

Conflicts:
	ENVTEMPLATE.sh
Adding rowcount
Fixing a comment
Some renaming
Merge pull request #254 from hammerlab/overwrite_vcf

Allow VCFs to be overwritten
Rename __tests__ to tests

Change strings which rely on this name.
Merge pull request #257 from hammerlab/issue-208-rename-__tests__-to-tests

Rename __tests__ to tests
Remove hammerlab mention from README

fixes #216
Merge pull request #263 from hammerlab/issue-216-remove-hammerlab-mention-from-readme

Remove hammerlab mention from README
Tokenize queries and do fuzzy matching.