Get ordered feedback

GetFeedback() orders the feedback (by position and message) before returning it.

Keep best feedback

ParseAny keeps only the best feedback in case of an error.

Keep more feedback

We keep feedback from earlier parsers in error case of ParseAll.

Fix the feedback handling fix

The user has to decide how strict we clean.

More exact feedback cleaning

Make feedback cleaning more exact.
Especially (and automatically) at EOF.

Allow cleaning of feedback for transactional behaviour

The new method on *ParseData, "CleanFeedback()" can be called at convenient places.
This is usually after receiving a successful result that is meaningful for the user.

More information about errors

Feedback from unsuccessful but optional parsers isn't discarded anymore.

Useable for production

Rounded up the parsers and some rough edges.
Added tests for almost everything.

First official release

Realeasing this now so I can use it in another project.
TODO: Test the ParseGoodRunes parser!