INGA port

Here is the INGA port that was done as a part of my bachelors thesis. This is a first pull request, and the code will probably not merge cleanly with wiselib/master.

There are some things unrelated to INGA, such as a few modifications to the build system and concept checking classes for Boost Concept. My whole 'wiselib' branch could probably be split up into 2-3 smaller branches that deal with only one problem each.

The TinyOS port will only work with my "tinyos-inga" repo (which is based on a release candidate version of TinyOS 2.1.2).

The Contiki port should hopefully run with the IBR-Contiki version for INGA.

If there are any more questions, problems, don't hesitate to ask :)