seh 0.0.3

Pure ruby event handling similar to w3c dom events. Lots of bells and whistles to support complex event handling as required by stuff like video games. + event handling in a synchronous specific order + event targets can have multiple parents and common ancestors; event propagation does a breadth first search traversal over a directed acyclic event target graph + staged callbacks: event.before { .. }; event.after { .. } + staged callbacks allow for an ancestor to influence affect of event on a descendant: ancestor.before { |event| event.x = 5 }; descendant.after { |event| puts event.x } + events can have multiple types, and types can inherit from other types + bind callbacks using event type filtering: node.bind(overcast AND (rain OR snow)) { |event| callback! } + optional event failure: event.success { yay! }; event.failure { oops! } + events on stack don't care about other events above/below - event A, currently executing, can create/dispatch/finish another event B