Merge pull request #36 from sbadia/master

build: Disable DNS reverse lookup for SSH daemon
Merge pull request #39 from ghantoos/master

[packages] Added 'man' package to base install
base: Simplify package list

It does exist many duplicates between various package set. The
cross-distro package list wasn't used properly leading to useless
duplicates.

This patch does put all the common packages in the cross distro and
resort packages by alphabetical order.
Merge pull request #32 from Spredzy/add_rst_doc

Add rst doc
Makefile : add dir and fix permissions

Add configuration for health directory.
Fix permissions for $(WWW_CONF_DIR)/{hw,logs,health} directory.
Add sed action for healthdir in edeploy.conf
tools/jenkins-build.sh: do not clean after build to accelerate future builds
build/init: allow to have an empty GRUB_CMDLINE_LINUX_DEFAULT
upgrade-from: Don't update-repositories

This is not sane to do such action here since the OS we spoke about are
supposed to be setup and finished. If we run such command, we could
change their content which is particulary weird.
base: Adding vim package for deb based distro

It's pretty useful to get vim on board.
create-image: Don't mount /dev but copy it

Don't mount /dev as umounting could lead to a serious damage of the real
/dev.

Let's copy the content of /dev to the MDIR and delete it at the end of
the build
create-image: Enabling +e when entering cleanup

When we run the cleanup, we shall enable the +e to avoid the script
exiting prematurely.
upload: Reporting tested profiles on match failure

When a profiles doesn't match, we inform users that no profile match the
hardware spec file.

Sometimes users forgets to update the state file. To avoid this mistake,
let's report the profiles name used to do the comparaison.

A typical output looks like :

    Unable to match requirements on the following roles :  hp, vm, vm-debian
build/create-image.sh: fix cleanup called before MDIR is set
U/Mount /dev instead of rsync/rm

This commit:
- puts back the mount/umount of dev
- moved the mkdir of /dev after the potential lazy umount. In case
  the umount fails, the script returns 1.