[CF-340/CF-349/CF-343] Productize Preferences Service
    [CF-343 - Clean up schema] Removed setup method from preference service
    [CF-343 - Clean up schema] Provided sample db for development purpose
    [CF-349 - Changes to db schema] Denormalized tables to directly save json scheam in the database
    [CF-349 - Changes to db schema] Renamed tables and removed unused classes
    [CF-349 - Changes to db schema] Changes to map slick tables to case classes
    [CF-349 - Changes to db schema] Changes to map joda time to sql timestamp in slick
    [CF-349 - Changes to db schema] Created sql to be used when creating a new postgres database.
Merge pull request #16 from ChandraAddala/cf340-cf343-cleanup-schema

[CF-340/CF-349/CF-343] Productize Preferences Service
merge with master that has Chandra's DB refactoring