Added ad hoc files
Merge pull request #77 from DavidWeisberg/master

Added ad hoc files
added evolution for hpi fields table
finish creating evolutions for medical page
Merge pull request #82 from kevinzurek/feature-evolutions

Feature evolutions
Created model and DI for hpi_fields table
Added model and DI for treatment_fields table
Added model and DI for patient_encounter_hpi_fields table
forgot generic repo from last commit
Added model and DI for patient_encounter_treatment_fields table
organized DI data layer module
Added date_taken to patient_encounter_treatment_fields
add not null to columns in patient_encounter_hpi_fields
Merge pull request #83 from kevinzurek/feature-DataModels

Feature data models
modified age to date format, Evolution for age change from int to date
[feature-triage-dateformat] changing age to Date format
confict resolved for 18.sql