Release v3.0

New features when compared to v2.2.2:

• Migrated project to .NET core 2.0
• Silverlight support has been removed
• Jurassic classes are no longer implement ISerializable
• Support template literals
• Support extended unicode escape sequences
• Support for-of statements
• The CompiledScript class allows compiling script once, then running it on any ScriptEngine.
• Support for typed arrays, Map, Set, WeakMap and WeakSet.
• Partial support for symbols
• Support ECMAScript 6 library functions on String, Array, Number and Math