WATagBrush and WAPrettyPrintedDocument inconsistencies

[GoogleCodeExporter]

WAPrettyPrintedDocument>>#knownEvents contains all event attributes for pretty 
printing. Comparing it to WATagBrush reveals:

1. WATagBrush is missing the onAbort event attribute.
2. WAPrettyPrintedDocument>>#knownEvents is missing the oninput event.
3. The following events methods on WATagBrush are implemented as regular 
attributes when they should be implemented as event attributes: (see 
WATagBrush>>#onFocus: for an example of how event attributes are implemented)
 - onResize
 - onScroll
 - onError

Original issue reported on code.google.com by avish...@gmail.com on 9 Feb 2011 at 8:38