Fixed issue #144, 'as' expression with right hand side as a non type expression fails.
Fixed issue #157.  Tokenizer was disallowing semicolon if next line had 'add', not '+' symbol.
Added issue test file.
Fix for issue #121, can't use 'int' and 'uint' as classes.  Changed parser to treat basic types as full name expressions, fixed playscript implicit conversions to correctly work with these.
Fixes for Array and Object initializers
Renamed AsObject to AsExpandoObject
Removed code that was doing type inference: always treat AsObjectInitializers as type ExpandoObject and AsArrayInitializers as Array
Made Expando initialization use ElementAccessor (expando[name] = value)
Merge branch 'ps-compiler-initializer' into ps-dynamic-runtime

Conflicts:
	mcs/mcs/mcs.csproj
	mcs/mcs/test.csproj