Removing unused code in htmlgen.
Share an event emitter between session and clidriver
Use session object to emit events in the CLI

At this point, all the mechanics of emitting events
is done in botocore, though the CLI does share an
emitter with the session object.
Remove before/after-operation in clidriver

These events have been moved into botocore and happen
much closer to when the actual operation is called.
Print error message to stderr, not stdout.
Merge branch 'page-events' of git://github.com/jamesls/aws-cli into jamesls-page-events
Add link to AWS security bulletins website in README file.
Update CLI with latest botocore wildcard changes

A HierarchicalEmitter no longer requires an EventHooks
object so I've updated the parts in the cli that were
creating EventHooks for HierarchicalEmitter to not do
so.
Remove reference to _services.
Merge branch 'wildcard-refactor' into develop

* wildcard-refactor:
  Update CLI with latest botocore wildcard changes
Update docutils requirements to be >=0.10

This matches what's specified in the setup.py.
Removing mysterious no-op statement.