Removed outdated releases

Just to cleanup the old stuff i have created the tag
https://github.com/crowbar/crowbar/tree/backup/releases-before-2014/releases
to preserve the old releases but i removed the following releases
directories for now:

* betty
* elefante
* essex-hack
* feature
* fledermaus
* hadoop-1.0
* mesa-1.6.1
* mesa-1.6
* mesa-1.7
* rails3anddb
* v1.2-openstack-dell
* v1.2-openstack
* v1.2-rc2-openstack
* v1.2
* v1.3-openstack-dell
* v1.3-openstack
* v1.4-crowbar
* v1.5-openstack-dell
* v1.5-openstack
* v1.5.1-openstack-dell
* v1.5.1-openstack
* v2.0-hadoop-dell
* v2.0-hadoop
* v2.1-hadoop-dell
* v2.1-hadoop
* v2.1.1-hadoop-dell
* v2.2.0-hadoop-dell
* v2.2.0-hadoop
Check that /srv/tftpboot/suse-11.3/install is not a symlink

Using a symlink is not supported for PXE boot, unfortunately.

https://bugzilla.novell.com/show_bug.cgi?id=886196
Merge pull request #2049 from vuntz/no-symlink

Check that /srv/tftpboot/suse-11.3/install is not a symlink
Fix type of crowbar-applied attribute that we add on install
Merge pull request #2050 from vuntz/crowbar-applied

Fix type of crowbar-applied attribute that we add on install
fix doc links in README.md
Merge pull request #2051 from fly/master

fix doc links in README.md
network-json-validator: Validate interface names too
Merge pull request #2052 from vuntz/validate-ifaces

network-json-validator: Validate interface names too
sledgehammer: Fix regexp to detect boot entries

It's some hexadecimal number we're looking for.
sledgehammer: Make sure that MAC variable is empty unless set

Some code path was not doing that, which could result in using a
pre-existing env var.
Merge pull request #2053 from vuntz/sledgehammer-fixes

sledgehammer: Fix regexp to detect boot entries
Reduce flickering caused by the spinner a bit

Normally  dialog  checks  to  see if it is running in an xterm, and in that case
tries to suppress the initialization strings that would make it  switch  to  the
alternate screen.  Switching between the normal and alternate screens is visual-
ly distracting in a script which runs dialog several times.
Merge pull request #2055 from dirkmueller/reduce_blinking

Reduce flickering caused by the spinner a bit
Merge pull request #2046 from tboerger/feature/release-cleanup

Removed outdated releases
install-chef-suse: Check for package installed

SUSE-Manager doesn't support patterns. The pattern requirements moved to
a package for now and the pattern just requires the single package.
Adjust the check so it's fine when the patterns-cloud-admin package is
installed.
Merge pull request #2056 from toabctl/fix-pattern-check

install-chef-suse: Check for package installed
Restructured stoney release folder
JSON reformatting
Replaced dell_bios with bios and dell_raid with raid