EUCA-7359
Working on adding autoscaling tags.
Merge branch 'testing' into astags
EUCA-7359
Tag editor added to scalinggroup wizard and scalinggroup edit properties dialog.
EUCA-7359
Continuing AS tag work.
Merge branch 'testing' into astags
EUCA-7359
Resolved problems and settled on how to get this done:

-Extended tag editor to override tag models and template when dealing with scaling group tags.
-Added if/else cases to eucamodel for scaling groups, to use astag model.
-Added autoscalingtags.js to do the same job as sharedtags.js, with the astags collection.
-Fixed places all over that do model.get('id'), which doesn't always work... scaling groups, for instance don't have the ID attribute. Changed to model.get(model.idAttribute).
Merge branch 'testing' into astags
Merge branch 'testing' into astags
EUCA-7359
Configured expando template to display AS tags.
EUCA-7359
Fixed broken request string when tags are present. Creates SG successfully, but tags still do not get created.
EUCA-7359
Found typos in the argument keys for scaling group tags in api.py, and getting that working led to finding a mistake in the astag model's sync function.
EUCA-7359
Ensure that the models get ID's on them.
EUCA-7359
Kinks worked out. Expandos updating with tag changes.
Merge branch 'testing' into astags