Use token prefixes for creating report
Mark report as incomplete if height or weight is unavailable
Test docstrings
Factor out common/useful things from handlers
Factor out common/useful things from forms
Added cancel report handler
Added cancel report handler tests
Change a few names
Remove expectation of djappsettings
There were so few settings that it didn't seem worthwhile to maintain that pseudo-dependency. It can be added back later if necessary.
Merge branch 'master' of github.com:caktus/rapidsms-nutrition into cancel-report
Update docs in accordance with latest code changes
Merge pull request #1 from caktus/docs-update

Write initial documentation
Use latest() to retrieve report
Merge pull request #16 from caktus/cancel-report

Cancel report handler
Merge pull request #14 from caktus/token-prefixes

Use token prefixes for creating report