upgrade to dropwizard 0.7.0-rc1

[tempredirect]

This is a completely incompatible update to dropwizard, hence the size of the changes.

• All of the Environment add* methods have be moved/replaced by jersey() and admin() etc
• The configuration object is significantly change, hence changes to http.port have been change to either server.applicationConnectors[0].port or just replaced with logging.level

[alexkrauss]

+1