Move data for survey_test db into own file. Refs #15.
Implement map/reduce functions for ‘Distribution of age’ and corresponding tests. Refs #15.
Move ‘work completed’ controller to main script file.
Add charts for ‘Distribution of Age’. Refs #15.
Merge pull request #2 from hbj/feature/distribution_of_age

Distribution of Age
Merge branch 'develop' of github.com:eHealthAfrica/SMART2-Dashboard into develop