Fix connect.js grunt script

Fix for this error when running grunt test:

grunt test                                                                                                                              (05-02 14:56)
Running "newer:jshint" (newer) task
Running "newer:jshint:all" (newer) task
Running "jshint:all" (jshint) task
>> 33 files lint free.
Running "newer-postrun:jshint:all:1:/Users/chrisk/source/martest/node_modules/grunt-newer/.cache" (newer-postrun) task

Running "connect:test" (connect) task
Verifying property connect.test exists in config...ERROR
>> Unable to process task.
Warning: Required config property "connect.test" missing. Use --force to continue.

Aborted due to warnings.