NOTICE: When bundling always wrap a collection of exported functions in an external namespace declaration

[ToddThomson]

Since TsProject bundles ES6 external modules into a single javascript library, you cannot have a "loose" collection of functions( classes, variables, etc ) within a source file. Wrap the functions in an external module definition. For example:

instead of:

export foo() {}
export bar() {}

use:

export namespace foobar {
   export foo() {}
   export bar() {}
}

This should be added to the wiki documentation.