Modified two lines in order to get mocha tests to pass.

* added timeout value to the mochaTest task in GruntFile, as the default is 2 seconds and my environment takes more than 2 seconds when first 'lifting' sails.  I presume others devs may have a similar issue, and I found no reason to not increase the time to 10 seconds.
* tests/basicEndpoints.js, in it's after() hook, was calling 'sails' directly, which resulted in a 'command not found' error.  Updated to use require('sails'), which worked.