* needs testing (probably breaks/throws), also it's time to write some
  tests before first release
* Readme temporarily outdated, use tag latest-readme-compatibility to be
  on track with the readme
* :set not supported anymore, will change meaning in next commit
* dochan now blocks
* former dochan is now gochan, also binding mistakes in dochan have been
  fixed.
* dochan binding syntax has changed, the channel-binding must be the
  last
* various bugfixes in utility macros (drop-args, nth-arg)
* Exception handling in dispatch loop to make debugging easier when an
  exception is thrown from an event (rethrows IllegalArgumentException)
* Exception handling when processing watches (rethrows IllegalStateException)