Changes Party.contracteds to the more correct Party.contracted
Adds Party.offered_licitations and Party.taken_licitations
Adds Flask application and Restful API
Adds specs for REST api
Fixes Party joins
Rewrites REST handlers using a mapper
Changes default number of results for queries to 10
Joins collection and element REST handlers into the same resources
Rewrites REST responses to avoid dictionary wrappers
Accidental merge