1.1.0

• Adding DepthFirstExpressionVisitor which provides the ability to visit all descendant expressions of a given expression
• Fixing a bug that meant a duration would be considered a valid expression

1.0.4

Increasing the extensibility of the parser by using Parse.Ref to refer to more subparsers.

1.0.3

Small improvement made in the error messages returned- should be more understandable when a function or aggregate wraps an invalid expresison.

1.0.2

• Fixing bug that meant keywords were considered valid metric identifiers
• Enable printing collection of non-strings in AST records when ToString() called

1.0.1

• Fixing bug with printing negative durations

Initial release

1.0.0

Warning fix