Updated release notes for 0.7.1

Includes newly backported patches.
Upgrade to maven-release-plugin 2.5

Fixes a bug causing the release to fail to commit under newer versions
of Git.
Updating Jackson to 2.4.1. Adds official support for Guavas HostAndPort deserializer and Jdk7s Path.
Merge pull request #621 from reines/dep_jackson_2.4

Update Jackson to 2.4.1
Update Dropwizard version in docs
Add release date for Dropwizard 0.7.1 to Release Notes
Skip deployment of 'docs' submodule
Merge pull request #628 from joschi/skip-docs-deployment

Skip deployment of io.dropwizard:docs
Upgrade to commons-lang3.

This is a minor change to use the non-legacy version of commons-lang. No
functional change expected, but it does make more sense to use the
latest in this case.
Merge pull request #632 from wotifgroup/commons-lang3

Upgrade to commons-lang3 3.3.2.
Merge remote-tracking branch 'upstream/master'