Add UiCommand onAbort style methods equivalent to onError and onSucess [moved]

[jonnybbb]

This is Issue 33 moved from a Google Code project.
Added by 2010-07-29T06:11:20.000Z by andrew.pietsch.
Please review that bug for more context and additional comments, but update this bug.

Original labels: Type-Defect, Priority-Medium

Original description

There's currently no way to react to abort events from UiCommands.  I.e. there's no support for the following:

uiCommand.always().onAbortInvoke(...)
uiCommand.always().onAbortSend(T).to(...)

It may also be nice to support:

uiCommand.always().onErrorOrAbortInvoke(...)
uiCommand.always().onErrorOrAbortSend(...)