AUTHORS: flatten
configure.ac: remove bug report address

Bugs should be reported through github issues.
configure.ac: use -Wall -Wextra
**/*.[ch]: massive reformatting

Full code reformatting using:
$ indent --linux-style **/*.[ch]
src/afuse.c: fix user_options, silence all warnings

user_options was missing a field in its static initialization.
src/afuse.c: remove indentation info
ChangeLog -> NEWS: renaming, consistent formatting

Renaming follows the libabc "guidelines":
https://git.kernel.org/?p=linux/kernel/git/kay/libabc.git;a=blob;f=README;h=b4bed;hb=HEAD#l193
README: remove maintainer information, change URI
HACKING: refer to github, specify indentation, fix typos
NEWS, README, configure.ac: get ready for a 0.4 release

As discussed with cjiph, 0.2 and 0.3 have been mixed in the past.
Moving to 0.4 to avoid any confusion.
Tidying up

* Fixed compiler warnings about potentially uninitialised variables (build now warning free on my system).
* Fixed potential bug in populate_root_dir() error handling. Error handling is still quite messy though.
* Tidied up some broken indenting.
* Have error about missing getline/fgetln in one place only.
* Tidying up usage a bit.
* Tidying up and extending README file to cover new features.
* Renamed sshnet to afuse-avahissh.
Modified AUTHORS file to indicate original author + current lead developer.
README: specify GPL version
src/afuse.c: remove contirbutions header
README: https link for github, link to Google Code for downloads