don't crash on empty exports
Merge pull request #78 from dimagi/cz

don't crash on empty exports
whitespace
switch csv exports to use the file system
Merge pull request #79 from dimagi/file-exports

switch csv exports to use the file system
Merge branch 'master' of github.com:dimagi/couchexport
remove unnecessary import check (is in requirements in setup.py)
Merge pull request #80 from dimagi/cz

remove unnecessary import check (is in requirements in setup.py)
Remove trailing whitespace
Merge pull request #81 from dimagi/whitespace

Remove trailing whitespace
Merge branch 'master' of github.com:dimagi/couchexport
Merge branch 'exports_from_configs'

Conflicts:
	couchexport/models.py