shared-method: reject `NaN` numbers
Implement rest option `arrayItemDelimiters`

Allow developers to configure the REST adapter to support shorthand
notation of array values, for example

    GET /api/domains/suggest?tlds=com,net

The option is called `rest.arrayItemDelimiters` and accepts either
an array of delimiters or a regular expression.
Merge pull request #142 from strongloop/feature/compact-array-and-improvements

Compact array and improvements [GoDaddy]