Fix get_emi defaults

Change-Id: I4d7616141ff9b2a3fccd0e4d9fa00cccacf35791
Add tags to ec2.robot

Change-Id: Ia39573536ab93ae6d12f30f3c8f4259d289afc7a
No default credpath

Change-Id: Ib29066c6f898e3c5d91b40c13ac11e13603add76
Merge branch 'maint/4.0/testing' into testing
Merge branch 'testing' of github.com:eucalyptus/eutester into testing
Allow basic image flag to be set in request
Update instance and bfebs tests to allow cli-args and kwargs, add basic image flag when fetching image, use run_image()
Merge branch 'testing' of git.qa1.eucalyptus-systems.com:qa-repos/eutester into testing

Conflicts:
	eucaops/ec2ops.py