removing leading and trailing whitespace when users type in their email address
not using public and private DNS in euca, since they often don't resolve correctly for us
added new argument, --clear_datastore, that tells appscale to erase all zk and cassandra data
Merge pull request #274 from shatterednirvana/use-ips-in-euca

not using public and private DNS in euca, since they often don't resolve correctly
Merge pull request #273 from shatterednirvana/remove-whitespace-on-user-entry

removing leading and trailing whitespace when users type in their email address
added new arg to terminate script to indicate when we want data erased or persisted
not requiring cloud admin to exist if existing data is in datastore (since that user may already be there)
added in mocks to check for user existence before creation
Merge pull request #276 from shatterednirvana/persistence-finally

Persists data across AppScale deployments
Revert "Merge pull request #276 from shatterednirvana/persistence-finally"

This reverts commit 98b2a49d664a06d1168ee6acbea980374c733d76, reversing
changes made to c55220742492e62db372c662468abaabf22796c0.
Merge pull request #277 from AppScale/revert-persistence-pull

Revert "Merge pull request #276 from shatterednirvana/persistence-finall...
Revert "Revert "Merge pull request #276 from shatterednirvana/persistence-finally""

This reverts commit 35e10c15bce8e6159682a18b294c3e03f6d36ce9.
added docstring on clear_datastore
Merge pull request #278 from shatterednirvana/persistence-finally

Revert "Revert "Merge pull request #276 from shatterednirvana/persistence-finally""