fix tsp internal variable type to double.
Merge pull request #160 from sanak/develop_issue159

fix tsp internal variable type to double.
Add option to test script to ignore NOTICE statements.
Another attempt to fix #151
add ignore notice to winnie test scrip
Yet Another attempt to fix #151
Adding -ignorenotice to some of the travis test.
Merge branch 'develop' of github.com:pgRouting/pgrouting into develop