added .bundle to gitignore
added .bundle to gitignore

Signed-off-by: Jeroen van Baarsen <2e488d5cebaf6d2832884be70e328933bd4c80ab@gmail.com>

berkes/chef-repo,czhc/chef-repo,multunus/chef-repo,czhc/chef-repo,intercity/chef-repo,dprabu17/chef-repo,czhc/chef-repo,czhc/chef-repo