Add connect middleware to allow for rewrite rules

### Ultimate Problem
Currently there is no way to add rewrite rules for the connect servers used by wf-grunt.

### Solution
Add [grunt-connect-rewrite](https://www.npmjs.org/package/grunt-connect-rewrite) as a dependency and add its `rewriteRequest` module to the connect middleware. This allows consumers to optionally define a set of rewrite rules for the connect module and enable them by adding the `configureRewriteRules` task to the task list wherever necessary.