push_fixtures compresses fixtures as gzip before uploading
fixed up gzipping in push_fixtures
pull_fixtures automatically unzips compressed files
changed option to --nocompress, compression enabled by default
adding documentation on compression
Merge pull request #5 from gizmag/gzip-compression

Gzip Compression
bumping to version 0.3.0
Merge branch 'master' into pull-fixture-caching
pull fixture cache implemented / working
implemented remove_gz_suffix

this method is used to remove ‘.gz’ from the end of strings. It’s used
to get the correct cache file name for fixtures that are stored
compressed on S3 but uncompressed locally.