Added and mounted to the session a trasport adapter in the constructor.

Requests use transport adapters to define and maintain connections.
Http adapter has a parametr max_retries - maximum number of retries
each connetion shoult attempt when connection fails. Due to default
max_retries=0 after the connection faluire/closure/timeout/other
reason no other retries are permitted and BadStatusline error is
raised. In order to avvoid this issue number of retries were increased.
Using url as prefix instead specific 'https' prefix in order to handle http and https situations.
add pulp-admin group installation
Renamed test_2_repo to a specific type of repo due to future introduction of other content types.
Adding rpm repo copy testing.
Cleaning up
Introducing puppet modules repo testcases
updated data func
added custom_update()
added create_puppet_repo() that will create a default puppet repo
Tests for  copy individual types.
Merge branch 'master' of github.com:RedHatQE/pulp-automation
moving orphan to units
fix import error on newer gevent lib
fix: assert some orphans
Introduced advanced search for different resource types
Merge branch 'master' of github.com:RedHatQE/pulp-automation
Renamed custom_update() to importer_config_update() to be more explicit
introducing content unit types
fix packaging