Added travis yml file

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5682 43c1dc8c-776e-4df2-8ef1-6e829299be21
Added travis compilation status link

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5683 43c1dc8c-776e-4df2-8ef1-6e829299be21