prevent Address already in use error for multiple starts on same port
templates: Fix Debian 7.0 i386 template to use rc1 i386 release

Signed-off-by: Rohit Yadav <bhaisaab@apache.org>
templates: Use cat to append or write multiline string to a file

The grub2 config patching fails and an empty file is written as echo <<EOF is
used. Using cat fixes the issue. Tested with vbox by creating veewee based
systemvm template for CloudStack [1]

[1] http://jenkins.cloudstack.org/job/build-systemvm-master

Signed-off-by: Rohit Yadav <bhaisaab@apache.org>
Fix password-less ssh for sudoers, including vagrant user. Replaced "\t"
in regular expression to update /etc/sudoers with literal tab character.
Merge pull request #587 from dcharbon/master

Fix password-less login on ubuntu-12.04.2-server-amd64
Add CentOS 6.4 minimal templates.

Based on the 6.3 x64_86 minimal template with a couple minor changes:

- Install chef via the new omnibus installer (so the ruby definitions
are no longer explicitly needed).
- Update the ks.cfg "%packages" to match the defaults from a standard
CentOS 6.4 minimal install.
Merge pull request #588 from GUI/master

Add CentOS 6.4 minimal templates
Merge pull request #584 from acaire/disable_allow_for_http_request_threading

prevent Address already in use error for multiple starts on same port
Merge pull request #585 from bhaisaab/master

Debian templates for i386 and amd64 fixes using rc1 and grub2 cfg patching fix
Add rbenv-gemsets to gitignore
Merge pull request #589 from eshamow/add_rbenv_gemsets_to_gitignore

Add rbenv-gemsets to gitignore
templates: For Debian 7.0 rc1-amd64 select console keymap 'us'

Signed-off-by: Rohit Yadav <bhaisaab@apache.org>
Merge pull request #590 from bhaisaab/master

For amd64 Debian 7.0 rc1 template, fix console keymap as 'us'