Travis ci build

This pr add [travis ci](https://travis-ci.org) build configuration

build is for every branch/commit/pull request and for personal forks

build is compile ( both FunScript.sln and FunScript.Libraries.sln ) and run unit test ( FunScript.Tests )

build is passing  [![Build Status](https://travis-ci.org/enricosada/FunScript.png?branch=travis_build)](https://travis-ci.org/enricosada/FunScript) ( for info click the badge or :x: near commit sha ), but one unit test is ignored only on mono ( see [log](https://travis-ci.org/enricosada/FunScript/builds/16628256#L341) ). 
The test is ok, but there is a mono bug ( mono/.net compatibility ), i will add issue to mono bugzilla tomorrow with a fix

If you need info or other stuff, let me know.

TODO you should do before merge:
* You should login on https://travis-ci.org/ and enable service hook for ZachBray/FunScript . 
After that there will be a new build every commit (see [travis help](http://about.travis-ci.org/docs/user/getting-started/#Step-one%3A-Sign-in) ) on the [ZachBray/FunScript](http://github.com/ZachBray/FunScript) repository
* on REAME.md there is the badge, should be changed to ZachBray/FunScript.