Merge pull request #14 from gabor-meszaros/master

add additional parameters to launch files
read S2 test data from pr.willowgarage.com; make that test unconditional
update change log
make test output names unique
make more test output names unique
clean up test files, make the names more informative
add 64E S2.1 XML config file to velodyne_pointcloud tests directory
tag change log for 1.1.1 release
1.1.1