examples/echo: some improvements
reagent: move the master to reagent itself
behaviour: add some comments
reagent: some connection handling improvements
reagent: add function to listen to new descriptors in the pool
behaviour: remove left over debug code
README: fix some stuff
reagent: improve count API
reagent: add some docs, specs and comments
README: improve complex example
connection: fully implement stream protocol
reagent: improve acceptor resurrection