Allow multiple processors to run against the same node

[pauloortins]

Today, when the first processor matches a specific node, it executes and the rest of the processor functions are not called. However, some times we need that multiple processors act on the same node.

For example, I can have a processor that add uppercase to links, p, span and h1 and I can have another one where I want to add readonly to the links.

My suggestion is that we can have a property on the processor that we can choose if should skip the rest of the processors or not.