Added more tests for Export tool class
Added sane default for fields
Fixed serializer test
Added csv serializer
Fixed documentation
Added csv serializer to test settings
Added test for all serializer formats
Updated sample images
Fixed readme images
Removed snippetscream dependancy
Added functionality to mail an export to the logged in user
Added button to send exported data in an email
Unicode fixe
Modifed button labels
Added yaml dependancy
Added message and redirect to email response
Added dummy email backend
Merge branch 'feature/issue-9-mail-export-data' into develop