work on py26
Merge remote-tracking branch 'mrocklin/csv-pandas-fixes' into mrocklin-csv-pandas-fixes
Merge remote-tracking branch 'mrocklin/csv-pandas-fixes' into mrocklin-csv-pandas-fixes
Merge remote-tracking branch 'mrocklin/csv-pandas-fixes' into mrocklin-csv-pandas-fixes
Add compression
Write in binary mode for gz
Discover with compression if necessary
Need mode arg in filetext