First draft of UReportApi
Second draft of api component
Stub out api tests
Tests for UReportApi (along with the relevant fixes and improvements)
Change UReportApi path joining to make it a little clearer
Shorten api.join_paths util a little
Merge branch 'feature/issue-6-add-u-report-api-component' into develop
Merge branch 'develop' of github.com:praekelt/vumi-ureport into develop