Version bump to 2.1.5 (for development)
Version bump to 2.1.5 (for development)

jjasghar/chef-server,hcheung/chef-server,GannettDigital/chef-server,CVTJNII/chef-server,vinyar/chef-server-1,chef-cookbooks/chef-server,juliandunn/chef-server,zenmate/DEPRECATED-chef-server,eeyun/chef-server,eeyun/chef-server,xacaxulu/chef-server,stephenlauck/chef-server