Add Travis CI [WIP] about mbx HOT 1 CLOSED

@dgasmith I think I worked out the problem of

1. Not using cmake 3.3 (default whith that config file was 3.2)
2. Eventhough we ask to use g++5 and g++4.9, since CXX and CC are not defined, uses the difault for the ubuntu tools, which is 4.8, and that makes cmake fail
   Probably not the most beautiful solution (what I made) but something that works.

The rest of errors are due to the code, which I will have to work on that. I will locally install cmake 3.3 and try to compile this to locate those errors. Once it works, I will make a pull request.

from mbx.