Minor revision release candidate: 3.1.0

[celskeggs]

Release of CCRE with API 3.1.0.

Major changes:
* Add support for 2016 roboRIO image

Minor changes:
* Support new mDNS hostname
* Remove extraneous StandardStreamLogger
* Add support for testing logging messages
* Add testbed sample for Valkyrie

Bugfixes:
* Fix serialization of PoultryInspector components
* Fix infinite loop bug with recursive error reporting in Cluck
* Fix CCRE version number support

[celskeggs]

Steps:

Travis CI takes care of checking license headers and unit tests. It also should upload the PoultryInspector binary for the final release. Serialization testing should now be done by the PoultryInspector integration test automatically.

• x Check Javadoc completion
• x Reformat CCRE
• x Compile changelog and buglog
• x Test code on roboRIO
• x Test emulator
• x Regenerate Javadoc & update Javadoc site (./update-javadoc-site.sh)
• x Update version numbers in documentation, including links.
• x Regenerate Scribble docs & update site (./build.sh upload)
• x Update version.properties
• x Tag and sign release
• x Upload release
• x Check GitHub release once Travis CI finished - it should have PoultryInspector.jar attached.
• x Merge pull request
• x Close milestone & defer incomplete issues and PRs
• x Update version.properties to a development tag
• x Merge any last-minute changes into later branches
• x Delete any extraneous branches
• x Post on ChiefDelphi