Update requirements to include test coverage
Only overwrite the discharge date if there is not already one set.

refs #119
Merge branch '0.1.2' of github.com:openhealthcare/elcid into 0.1.2
Merge branch '0.1.2' of github.com:openhealthcare/elcid into 0.1.2
Update Micro tags.

refs #114
Add latest 0.1.2 changes to changelog.
Merge branch '0.1.2' of github.com:openhealthcare/elcid into 0.1.2
Add reversion models to admin.

refs #115
Add reversion models to admin.

refs #115
Add Immune subtags.

refs #92
Merge branch '0.1.2' of github.com:openhealthcare/elcid into 0.1.2
Add details field to Past Medical History.

refs #99
Update changelog.
Pin reversion version
Merging 0.1.2 into master