Merge pull request #5 from mustafatasdemir/googlemaps

Googlemaps
front end adding multiple topics

front end adding multiple topics
multiple topics backend and controller added
Merged googlemaps with trustintegration. Map works, but multiple topics query still broken. Will fix.
Fixed multiple topic search. Presently supports only 2 topics along with limits. Limits needs to be introduced for single topic search. Need to change SQL for that. Also need to change SQL for sorting as single topic only supports publication count while multiple topic citation. Removed most of the multiple code as reuse was possible for most part. Also rewrote SQL for multiple topic search for dynamic limits and order by. Can be improved. Graph still has a bug in it where the older graph is not being removed if filters are applied. Needs to be fixed.