Implemented ListParser (fixes #4)
Removed PHP 5.5 ::CLASS
Changed evaluator to return an EvaluationResult (fixes #5)
Added tests for EvaluationResult, renamed EvaluationResult::expressionResult() to resultOf().
Added tests for ExpressionResult.
Readme.
Updated dependencies.
More readme changes.
Bumped version and updated changelog.
Fixed version badge color.
Some docblock changes.
Merge branch 'release/0.1.0' into develop