Merge branch 'GUI-1328' into GUI-811
Adjusted the launch config landing page's filter setup to allow security groups to be filtered using ID
Allow launchconfigs to be filtered by keypair "None"
Allow instances to be filtered by keypair 'None'
Updated the keypair filter option "None"
Removed unneeded, commented out lines
Merge pull request #1096 from eucalyptus/GUI-811

GUI 811 - Allow launch configs and instances to be filtered by keypair option "None" + security group filter fix on the launch config landing page