Added database functionality to the ranking files
Merge branch 'master' into popular_tags_with_db
Merge branch 'master' into popular_tags_with_db

Conflicts:
	ranking/src/ranking/ranking.java
SQL now takes in a category to determine which table to add tags into
Merge branch 'master' into popular_tags_with_db
Ranking integrated with db
Merge branch 'master' into popular_tags_with_db
Merge branch 'master' into popular_tags_with_db
Added function that will read the DB and return a vector of all values in associated category
Merge branch 'master' into popular_tags_with_db

Conflicts:
	ranking/src/ranking/ranking.java
Merge branch 'master' of https://github.com/CXCS130-Fall-2014/cxcatalogapi