Remove use of global variables + remove ember-cli-content-security-policy from package.json to avoid bogus csp violation warnings
---
.travis.yml:
forge_password: "GYBg84VC7Mx8BhAJ/56VjPU8tctatVVafGjuM9rJVmvJpbHkTz+XORHkvdVxCCkAkiq0/NZjwWpbxkQGMz0MxnXT5V/H90+h6YRHnWIEEqlW+5dR76uKZ9mO65cqk+l8UA+GUr5ZWKTS0fEJzjNR8aFM56DaM1u+SWIfjBXfE0k="