Template parser: Rename `skip_cache` to `cms:skip_cache`.
Merge branch 'develop' of /home/meaneye/Development/Workspace/PHP/SBS/../Caracal/Source into develop

pdated upstream into a topic branch.
PayPal: Replace getNameValuePair with http_build_query.
Common style: Removed outline on focused elements and removed obsolete
definitions.
Stripe: Added plans manager.
Libraries: Stripe: Updated to latest version.
Shop: Fixed reference to nonexistent variable.
Stripe: Added subscription support.

Also switched from JavaScript based token generation to
pure API operation.