logging for several resources
GUI-380
added request log statements to remaining parts of code
GUI-380
fixed tween test.. for now
GUI-380
switched log_request from being BaseView static method to instance method
GUI-380
refactored into 2 tweens
Merge branch 'develop' into GUI-380

Conflicts:
	tests/tweens/test_xframe.py
Minor PEP8 cleanup
Merge pull request #450 from eucalyptus/GUI-380

Gui 380