zotonic/zotonic — pull request #620 by ArthurClemens (2013-08-06 14:53:59+00:00)
Title: doc: Fix bugs and update

Rebar is now on GitHub, so links did not work.
Some of the 'ls' lines where mixed up.
"How can I make my new gen_server do something?" was unclear where to
put what. Function say_hello was incomplete.
"How can I test?" was not formatted so unreadable.
Fixed more links.