Description of problem:
Cannot Create the ovirt_history database using the create_db.sh script 
The file /usr/share/pgsql/contrib/uuid-ossp.sql does not exist

Version-Release number of selected component (if applicable):
Pre-Integration

How reproducible:
Always

Steps to Reproduce:
1.git clone ovirt-dwh, ovirt-engine
2.run from the ovirt-dwh folder the create_db.sh script-->
ovirt-dwh/data-warehouse/historydbscripts_postgres
  
Actual results:
The file /usr/share/pgsql/contrib/uuid-ossp.sql does not exist

Expected results:
Should create the ovirt-dwh history db

Additional info:

./create_db.sh -u postgres 

The file /usr/share/pgsql/contrib/uuid-ossp.sql does not exist. It is possible the postgresql-contrib package was not installed
In order to install the package please perform:

yum provides postgresql-contrib
This will determine which package should be installed. For example, for fedora 14 it should be: postgresql-contrib-8.4.7-1.fc14.x86_64

yum install package-name
For example, for fedora 14 it should be: yum install postgresql-contrib-8.4.7-1.fc14.x86_64
After installation is done, please run create_db.sh script again