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>
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'
Modified CentOS 5.8 netboot to use vault for stage2 image
Merge pull request #593 from eshamow/fix_centos58_netinstall

Modified CentOS 5.8 netboot to use vault for stage2 image