cors working
fixed cors
temp fix
temp fix
fixed requirements.txt
fixed cors and routes
disabled database for test
fixed cors header and route
Merge pull request #69 from dhfromkorea/master

fixed routes and cors
added basic type test for recomendation query

removed unnecessary comments
added extensive metadata
made reload database insert the new values into database

added pandas dependency
we should refactor this code to use pandas
updated database schema
added metadata to data files
wrote db reseting script in native postgres, now runs much faster