Adding IDs to all checkboxes on the landing pages

https://eucalyptus.atlassian.net/browse/EUCA-6551
Used hashCode() function to assign expanded row ID

https://eucalyptus.atlassian.net/browse/EUCA-7343
EUCA-7351
split image data sets into 'all' and 'user owned'. Unified a lot of resource namings in eucadata (to reduce the number of names for resources
EUCA-7351,added long poll interval for full image collection
fixed hash calculation for instances to avoid false change detection
set get_user_images to use get_all_images in order for euca testing to continue while search work goes on
Added load balancer help pages; modified login help page to cover AWS login.
EUCA-7359
Kinks worked out. Expandos updating with tag changes.
Merge branch 'testing' into astags