Disallow creation of users with spaces in their username
Use specific order for species export
Merge pull request #156 from ahinz/fix/username-with-spaces-in-api

Disallow creation of users with spaces in their username
Merge pull request #157 from ahinz/topic/update-order-for-species-export

Use specific order for species export
Merge branch 'v1.3' into mtm