csv: support non-record schemas
csv: support into('foo.csv', ..., mode=...)
Merge branch 'master' of github.com:ContinuumIO/blaze into csv-fixes

Conflicts:
	blaze/api/tests/test_into.py
bump version to 0.6.6
jenkins: don't upload to binstar
Merge branch 'csv-fixes'

Conflicts:
	blaze/data/csv.py