Merge branch 'master' of git@github.com:wycats/merb-core

* 'master' of git@github.com:wycats/merb-core:
  Spec for previously applied patch to Behavior#defer_to.
  use Route#register in defer_to so that deferred routes get an index
  Make Autotest ignore doc/ as well.
  Ensure Autotest ignores changes in log directory.
  Add helpers directory to load path
  Modules don't get duped right.
  Redo Merb's inheritable_accessors so that they have correct semantics, then 
  redo everything that uses inheritable_accessors so they don't have to hack 
  around the bad semantics.
  Added spec for the route matcher testing regexp routes. [#386]
  Add Merb.started? alias for Merb.started reader.
  Add reader for @started flag which shows when Merb environment is started.