adding a meta module to keep track of application information, such as name, vendor and version
using data from the meta module in setup.py, to ensure that the version is consistent across the app and setup builder
adding "server --version" and "console/ssl version" commands to display the Mercury version
modified service.by to include a send class that allows users to send messages to services
fixing the service binder, so we lazily create and include the data bundle iff it is used; refs #27
fixing up the messages printed by the service.send module, both as it runs and in its usage information; refs #27