GCI-48: Add patient visit notes and vitals through app

This completes points (3) and (4) in [GCI-48](https://issues.openmrs.org/browse/GCI-48):

![img_0077](https://cloud.githubusercontent.com/assets/5162342/5424811/7ecc6588-82bd-11e4-889d-2aaf5bdc6005.PNG) ![img_0079](https://cloud.githubusercontent.com/assets/5162342/5424809/7ec68ee2-82bd-11e4-9f2f-7287dc791fe9.PNG) ![img_0078](https://cloud.githubusercontent.com/assets/5162342/5424810/7eca28cc-82bd-11e4-8b73-6441809fe2b3.PNG)