start app hierarchy
app restructuring
added Province, District, Sector models
did initial schemamigrations
added code for excel_to_json hieararchy
added xlrd to requirements
registered models with admin
added the json fixture
added the actions
added the hierarchy app
added related name for api
created API
added API to urls
added the API LIMIT
Merge pull request #51 from praekelt/feature/issue-51-GHR-District-Mapping-Django-changes

GHR District Mapping Django changes