73f56fa819
In file doc/source/devref/development.environment.rst added packages build-dep and python-mysqldb which I have had to add on ubuntu 12.04 to enable the dev environment to be setup. Without these run_tests.sh fails with error 'mysql_config not found' when setting up the virtual env. Change-Id: I4af775386469deecf122a9e165457f241339b20b