Create organization, city and legal_form tables
Add postgis 2 extension into database

Create trigger for auto filling latitude and longitude of cities.
Trigger uses the google maps api and it's written in plpython.
Create table tenders, remove postgis
Create table for simple tender in database and remove postgis extension
from database because jboss cannot create serializable object with
gis field.
Merge branch 'feature/tenderScheme' into develop