Revert "Scripts should be sh compatable"

This reverts commit 5e6e38d24fee7af8ff4e4816457a789846000fa2.

Conflicts:
	files/private-chef-cookbooks/private-chef/templates/default/sv-bookshelf-run.erb
	files/private-chef-cookbooks/private-chef/templates/default/sv-keepalived-run.erb
	files/private-chef-cookbooks/private-chef/templates/default/sv-opscode-expander-reindexer-run.erb
	files/private-chef-cookbooks/private-chef/templates/default/sv-opscode-expander-run.erb
	files/private-chef-cookbooks/private-chef/templates/default/sv-opscode-solr4-run.erb
	files/private-chef-cookbooks/private-chef/templates/default/sv-postgresql-run.erb
	files/private-chef-cookbooks/private-chef/templates/default/sv-rabbitmq-run.erb
	files/private-chef-cookbooks/private-chef/templates/default/sv-redis_lb-run.erb
Convert sv scripts from sh to bash