Mandatory names

[AdrianDAlessandro]

This begins the tasks set out in #118 (comment) beginning with the making the name field mandatory and unique for most of the models.

This almost works. It's failing with 'NoneType' object has no attribute 'institution' because the user_owner attribute of the Experiment is not set until after the form validity is checked here https://github.com/ImperialCollegeLondon/Faraday-liionsden/blob/develop/common/views.py#L74

Also, it is currently based from the auto-mass branch.

Edit: I found a way to add the user to the form before checking its validity. I believe this works as intended now and should make all the other forms that use this base form more robust.

It is now based off the develop branch, and should be merged after #220

[dandavies99]

Yeah it looks like we might need to adjust that view. I can't see a way of doing it without user_owner being set before is_valid(). There are some unit tests for battDB.views so hopefully it'll be obvious if a change breaks anything, although we probably should expand the coverage of those tests as a matter of priority.

[dandavies99]

Looks great! Nice addition to the tests too. Just a couple of small suggestions and a question about having unique=True in the abstract base model.