Add shim to compile optimiser config (with test).

This is the same issue as caolan/jam/#113 with the addition of a test case.

>Issue: the compile command currently doesn't include shim config the project is using, so optimized output breaks
>Solution: include shim config from jam/require.config.js in the optimize call


The crux of this issue is that if you use shim to define that a package `exports` a variable (e.g. Backbone or in mytest PackageOne) then this shim is needed by require's optimiser to defines the package such that it returns the exported variable.

My test includes a module with main.js:
    
    var PackageOne = {
        name: 'Package One'
    }
 
and package.js:
    
    {
        "name": "package-one",
        "version": "0.0.1",
        "description": "Test package one shim",
        "jam": {
            "shim": {
                "exports": "PackageOne"
            }
        }
    }

If the shim is not passed to the optimiser then it will define `package-one/main` as:

`define("package-one/main",function(){})`

If shim is passed to the optimiser then it will define `package-one/main` as:
    
`define("package-one/main",function(e){return function(){var t,n;return t||e.PackageOne}}(this));`

In both cases `package-one` is defined as 

`define("package-one",["package-one/main"],function(e){return e})`

The result is that without the shim any package that requires `package-one` as a dependency will not get passed PackageOne:

    define('mypackage', ['package-one'], function (one) { 
       //  one will only be defined as PackageOne if shim is included
    }

In addition I fixed some typos in the other integration tests,