MULE-7269: Review flaky tests... Changed wait time and assertions for polling test.
MULE-7283: Added checking code for hung threads in AbstractMuleTestCase and fixed some tests by disposing resources.
MULE-7283: Code formatting.
MULE-7285: Catched exceptions during configuration phase in order to dispose the created mule context and then re throw them.
MULE-7286: Added expiryMonitor field to the disposing stage.
MULE-7283: Ensure different names for services and flows created by MuleTestUtils helper.
MULE-7277 Remove isResovable() check than can be done without to improve performance
MULE-7293: Lost objects are kept and they are disposed with the still registed objects on registry dispose phase.
MULE-7268: Fix test comparison
MULE-7277 Only use additional GlobalVariablesResolverFactory if required.
MULE-6926: flaky test. Ignoring SMTP test.
Merge pull request #355 from mulesoft/flaky-smtp

MULE-6926: flaky test. Ignoring SMTP test.
MULE-7303: changed wsdl location of ws-consumer to be read as a resource
Merge pull request #356 from mulesoft/MULE-7303

MULE-7303: changed wsdl location of ws-consumer to be read as a resource
MULE-6926: flaky test.
Merge pull request #357 from mulesoft/slowtests-flaky-mtom

MULE-6926: flaky test.
MULE-7287:MustUnderstand header must not be considered by the cxf:proxy-service
MULE-7304 - adding extension point to decorate DataSource and ConnectionFactory
Merge pull request #358 from mulesoft/MULE-7304

MULE-7304 - adding extension point to decorate DataSource and Connection...
MULE-7268: Make suggested fixes