Adjusted whitespace for pep8 compliance
Fix E721 -  do not compare types, use 'isinstance()'
Fixed various pep 8 warnings
Merge branch 'pep-8' of https://github.com/hpcloud-mon/mon-agent into pep-8

Conflicts:
	monagent/collector/checks/check.py
	monagent/collector/checks_d/http_check.py
	monsetup/detection/__init__.py
	monsetup/detection/cinder.py
	monsetup/detection/cinder_api.py
	monsetup/detection/nova.py
	monsetup/detection/nova_api.py
	monsetup/detection/swift.py
	monsetup/detection/swift_api.py