Using setUpClass

May move to setUpModule eventually
Initial tests for internal equipment

Updated the functional tests to execute against internal lab equipment.
Tagged tests to separate between unit and functional.
Merge pull request #143 from shermdog/housekeeping

Cleaned up loadyaml and old files
Updated .travis.yml to only run Unit tests
Merge pull request #142 from shermdog/func-test

Initial Funcional tests
pep8 changes for facts folder
pep8 changes for factory folder
pep8 changes for cfg folder
pep8 changes for junos ie parent folder
pep8 changes for utils folder
Merge pull request #146 from vnitinv/pep8-facts

pep8 changes for facts folder
Merge pull request #147 from vnitinv/pep8-factory

pep8 changes for factory folder
Merge pull request #148 from vnitinv/pep8-cfg

pep8 changes for cfg folder
Merge pull request #149 from vnitinv/pep8-junos

pep8 changes for junos ie parent folder
test cases for exception,jxml and facts/personality
unit test cases for facts/ifd_style.py
unit test cases for facts/switch_style.py
Merged commit 53b0f0c to fix #150

Conflicts came in from merging PEP8 first.

Conflicts:

	lib/jnpr/junos/factory/table.py
Merge pull request #155 from vnitinv/unit-tests

Unit tests
Added unit attr

Added the unit attr to support flagged test runs.
Also cleaned up some PEP8