Issue #141 Add Vagrantfile to automate dev environment

Problem:
There is no automated way to setup a build environment.

Solution:
Use Vagrant to pull an Ubuntu image and install the same
prerequisites used on Travis.

Testing:
Full build on my macintosh.

bootstrap.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+# +----------------------------------------------------------+
+# | BASH : Modifying Shell Behaviour
+# |    (https://www.gnu.org/software/bash/manual)
+# +----------------------------------------------------------+
+# Treat unset variables and parameters other than the special 
+# parameters ‘@’ or ‘*’ as an error when performing parameter 
+# expansion. An error message will be written to the standard 
+# error, and a non-interactive shell will exit.
+set -o nounset
+
+# Exit immediately if a pipeline returns a non-zero status.
+set -o errexit
+
+# If set, the return value of a pipeline is the value of the 
+# last (rightmost) command to exit with a non-zero status, or 
+# zero if all commands in the pipeline exit successfully.
+set -o pipefail
+
+# +----------------------------------------------------------+
+
+sudo apt-get update
+sudo apt-get -y install software-properties-common
+sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
+sudo add-apt-repository ppa:team-gcc-arm-embedded/ppa -y
+sudo apt-get update
+sudo apt-get -y install cmake
+sudo apt-get -y install python3
+sudo apt-get -y install git
+sudo apt-get -y install g++-5;
+sudo apt-get -y install gcc-arm-embedded
+
+# Export to tell cmake which native compilers to use.
+export CXX="g++-5" CC="gcc-5";