Upgrade dropwizard-spring from com.yammer.dropwizard:dropwizard-core:0.6.2 to io.dropwizard:dropwizard-core:0.7.0

I upgraded dropwizard in dropwizard-spring from from com.yammer.dropwizard:dropwizard-core:0.6.2 to io.dropwizard:dropwizard-core:0.7.0. My company needed this upgrade so we could take advantage of the newer features. I followed the updated documentation and guides I found online.

Release Notes: https://github.com/dropwizard/dropwizard/blob/master/docs/source/about/release-notes.rst
Migrating Tips: https://groups.google.com/forum/#!topic/dropwizard-user/S4K3Ayfij3g