removed call to specific ros version setup.bash script
removed call to specific ros version setup.bash script and changed workspace creation sequence
calls new clean_catkin_workspace.sh script
changes access mode of script files
removed call to specific ros version setup.bash
added setup-file item with the corresponding ros distro setup.bash script
removes catkin build generated directories from previous build and recreates cmakelist link file
Merge pull request #18 from jrgnicho/issue_#17_setup_file

Issue #17 setup file