Updates for Visual Studio and License.
Update copyright text.  Symbols.
Symbols, functions, update license info.
Remove IronRuby references from main project.
Update copyright.  Function meta objects, interoperability!
Remove CollectParameterVisitor as it is a vestige of a very early prototype of IS and no longer needed.
Remove debug code.
Move existing binders to InteropBinder.
* Partial functions.
Dictionaries and access set fix.
Remove old SymbolExpression.cs
Allow use of foreign functions for yield statements or explicit function arguments, base for class runtime, native functions, string eval.
Start of class system, MethodTable function resolution, remove Array/Dictionary meta objects and make them inherit from Dictionary/Array directly.  nil instead of null, fix return statement in grammar.