Merge pull request #623 from uwescience/server-query-queue

Server query queue
CastExpression: TDD commits for #626

See #626
CastExpression: allow self-cast

Just return the child, untouched.

Fix #626
Merge pull request #627 from uwescience/fix-626

Fix #626
DeploymentUtils: support SSL for starting master
DeploymentUtils: handle SSL handshake exceptions as a positive sign
myriadeploy: parse ssl option