Merge pull request PowerShell#78 from rkeithhill/rkeithhill/dbg-launch-filevar-fix

Fix for PowerShell#76 - launch.json now uses  as default launch path

Author: daviwil

package.json

@@ -131,7 +131,7 @@
                         "name": "PowerShell",
                         "type": "PowerShell",
                         "request": "launch",
-                        "program": "${workspaceRoot}/SET_SCRIPT_FILE_PATH_HERE.ps1"
+                        "program": "${file}"
                     }
                 ]
             }