Add build.xml for building through Xcode from command line

This will allow jenkins to build the Launcher and
all of its dependencies from the command line in a
nice neat ant script that is checked into the repo!
README : add jenkins build status links

So that in the README on github the status of the
builds is displayed.
README : consistent style for headings
Merge pull request #17 from datalogics-bhaugen/jenkins-build

Committed