Convert to using the REST interface for wallaroo
Added support for notifications
Enable node checkin and minor bug fixes
Fixed issue writting security configuration repeatedly to the end of the
config file
Made notification address configurable and changed the default value to
mrg.grid.config.notifications.  Also made event handling more robust and
fixed minor bugs
Convert VMU tool to a shell command
Add config parser module
Bug fixes
Added commands for configuring condor's EC2 Enhanced feature
Description fixup
Removed all legacy tool bits
Merge branch 'REST-interface' into next-gen
Removed more legacy bits