Added parser support for assignments.
Deferred typechecking of vals to typecheck-time.
Initial support for class methods (doesn't quite work yet).
Merge branch 'master' of github.com:wyvernlang/wyvern

Conflicts:
	tools/src/wyvern/tools/parsing/extensions/ValParser.java
	tools/src/wyvern/tools/tests/ParsingTestPhase2.java
	tools/src/wyvern/tools/typedAST/CoreASTVisitor.java
	tools/src/wyvern/tools/typedAST/visitors/PrintVisitor.java
Fix merge
More var work, cleaned up tests.
Merge branch 'master' of github.com:wyvernlang/wyvern

Conflicts:
	tools/src/wyvern/tools/parsing/CoreParser.java
	tools/src/wyvern/tools/parsing/extensions/ClassParser.java
	tools/src/wyvern/tools/typedAST/CoreASTVisitor.java
	tools/src/wyvern/tools/typedAST/visitors/PrintVisitor.java
Error fix