Merge branch 'development' of https://github.com/FEMR/femr into development
Styled sidebar menu, added menu js functionality - no server communication
added basic server communication
modified research method to grab patient items with some phony data
added getAllPatientAges method to Research service, which returns all patient date of births in a list
finished UI functionality
Added fetching list of single vitals from date range
Fixed issue with random graph requests not working
Added framework to graph certain vitals from database
Staged deleted files
added method in dateUtils to return age as float value rather than just strings
added method for getting all patient ages
created ResearchItem class, this is meant to serve as a common data model for all research data requests.
trying to create unified data model for research items. need to revisit and reeval structure of ResearchItem class.
added median, average and range calculations. they will need to be seperated into service layer.
added gender lookup to research service
Added tooltips and formatting fixes to front end graphs
Added tooltips and formatting fixes to front end graphs
Added tooltip to line graph
Started connecting data to graphs via age