add git tag line to RELEASE_PROCEDURE
Merge branch 'master' of github.com:ContinuumIO/blaze
Merge branch 'master' of github.com:ContinuumIO/blaze
csv: fix boolean logic in safely_option
Merge branch 'master' of github.com:ContinuumIO/blaze
Merge branch 'master' of github.com:ContinuumIO/blaze
csv: writes header if mode='w'
expr: only print summary keepdims if true
expr: by prints summaries nicely
csv: should_write_newline fails gracefully
expr: fix summary/by docstrings