add hook_permission. add the missing config:commerce_userpoints_discount_default_termid. improve menu.

change the hook_theme from userpoints_points to cu_points to avoid potential conflict with userpoints module 2.x branch.

Issue #1936042 by acarpio: Fixed Saving Points Payment Method Rule is not fixing errors on checkout.

remove extra dependencies for commerce_userpoints_discount. remove function commerce_userpoints_discount_update_7001. no need at all.

fix bug for variable_get. this will generate error message Warning: array_key_exists() expects parameter 2 to be array.

Issue #1873502 by mrfelton: Fixed Should not be able to apply userpoints as a discount when paying by userpoints.

Issue #1873496 by mrfelton: Fixed Payment method settings are not properly initialised until after saving the payment method rule.

Issue #1721634 by Albert Volkman | modreoci: Fixed WSOD in case to try to use the userpoints in checkout process.

Issue #1268564 by Berdir: Rename module to commerce_userpoints_discount to prepare for more use cases.