0.13.0 - Shrink-wrapped for your convenience

New Features

• New yotta shrinkwrap command which can be used to peg the versions of dependencies (including indirect dependencies).
• yotta outdated will now display information about why updates are prevented.
• The yotta ls --json format is now intended to be stable, and can be consumed by other applications.
• If you publish a module or target which uses -official keywords (for example, mbed-official), yotta will check that's really what you meant to do.

Fixes and Under-The-Hood Improvements

• Improved CI setup now uses nose, and produces a JUnit description of failures
• many, many more tests for yotta test, test runners, and test reporter scripts