Removed pecan app ref to fix test tearDown cleanup process

Workaround for bug #1279461

Related to blueprint sql-unit-tests-on-real-backend

Change-Id: I2c0fc2ee7b8740068d7b8cc398381d0020878863
Fixed connection pooling in tests

We need to disable connection pool for tests to fix connections leaks

Related to blueprint sql-unit-tests-on-real-backend

Change-Id: Iaedf083a97d0b9b442c7c52d9950833ead7f64bc
* OSLO db.session fix

This is a temporary workaround needed until similar fix from incubator.

Related to blueprint sql-unit-tests-on-real-backend

Change-Id: I90c5aafd46297009f318e059213a13432a0bb56b
Run unit tests against MySQL

This patch adds our whole bunch of unit tests to be run against MySQL.

Related to blueprint sql-unit-tests-on-real-backend

Change-Id: Id81fc876d88411471eaf40e17f1f42bbfa11e89b
Fix for get_statistics with postgresql

Add group by counter_unit in statistics query

Fixes: bug #1256318

Change-Id: Ia5fe4d921ec2467995a77287c0af1ed8f81ad9b8
Fixed DateTime in PostgreSQL

Fixes bug #1025481

Related to blueprint sql-unit-tests-on-real-backend

Change-Id: Iaefed9e20137dc40cecf56d91e69317def0bc72d
Run tests against PostgreSQL

Related to blueprint sql-unit-tests-on-real-backend

Change-Id: I43ad5011a705c2218e28378d52626e6e131974d2