When creating a new security group, if the VPC option is changed, remove the previoisly added rules since now the security groups are specific to VPCs
GUI-1280: Set default sharing type to "private" on Create Bucket page
GUI-1280: Display bucket name conflict dialog when attempting to create a bucket that already exists
Merge branch 'develop' into GUI-1264
GUI-1277
moved dialog template
updated text of bucket name already exists modal
GUI-996: Use more specific labels for scaling policies on scaling group detail pages and on create scaling policy page.  Update help text to reflect new labels.
merged develop
GUI-1290
fixed error handling for key generation
merged develop
GUI-1278
revised message extraction from low level exceptions
GUI-1249
re-factored image fetch for names to use filter by id,
handle IAM connection for AWS by returning None for connection type. It's simply ignored in ChoicesManager,
also removed instance role filter for aws
Merge pull request #957 from eucalyptus/GUI-1264

GUI - 1264, 1265 When creating a new security group, if the VPC option is changed, remove...
Merge pull request #961 from eucalyptus/GUI-1280

GUI-1280: Display bucket name conflict dialog when attempting to create a bucket that already exists
Merge pull request #982 from eucalyptus/GUI-1278

GUI-1278 revised message extraction from low level exceptions
Merge pull request #969 from eucalyptus/GUI-996

GUI-996: Use more specific labels for scaling policies on scaling group pages
Merge pull request #981 from eucalyptus/GUI-1290

Gui 1290 fixed error handling for key generation
GUI-1141: Hide "Remove from view" menu item on instances landing page for terminated instances on AWS
Merge pull request #985 from eucalyptus/GUI-1141

GUI-1141: Hide "Remove from view" menu item on instances landing page on AWS
GUI-1110
set up fake_id for all cases where we've created a fake image record for bundling IS instance. use fake_id for links in image view