monitoring app engine apps when we start them, to be consistent with unmonitoring when we stop them
not printing users AWS secret keys when running on ec2 or euca
deleting apps by keys, instead of with the actual model (since that is not the correct way to delete with ndb)
having dashboard update links to relocated apps
Merge pull request #778 from shatterednirvana/remove-app-data-correctly

deleting apps by keys, instead of with the actual model
Merge pull request #779 from shatterednirvana/dashboard-updates-ports-on-relocated-apps

having dashboard update links to relocated apps
Merge pull request #777 from shatterednirvana/dont-expose-creds-in-iaas-manager

not printing users AWS secret keys when running on ec2 or euca
Merge pull request #776 from shatterednirvana/fixed-remove-then-upload-app

Monitoring app engine apps when we start them
added guard on haproxy monitoring to avoid accidentally parsing a lack of info
adding and removing appservers in a round robin fashion (instead of adding all on one node), and fixed race condition on adding appservers
fixed incorrect inequality filter
added missing docstrings
updated metadata to correctly indicate that only one APIChecker is running
Merge pull request #771 from shatterednirvana/haproxy-on-login-node

Only running haproxy on login node
merged with org/master