eForm - WordPress Form Builder 4.18.0

* **New** - Subscription Payment with Stripe.
* **New** - Option to highlight all positive scores in summary table.
* **New** - Option to reverse the order of smiley rating.
* **Fix** - Appearance issue with styled container without icons.
* **Fix** - Bug in iFrame/GPS inside hidden/collapsible containers.
* **Fix** - Missing prefix and suffix in feedback small inline appearance.
* **Fix** - Make Center/Vertical appearance work for payment element.
* **Fix** - Hidden Stripe Payment causing JS error.
* **Fix** - Primary fields not getting disabled after adding to the form.
* **Fix** - GetResponse Integration now updated with v3 API.

Changes
* **Fix** - Issue with Guest Blog element placeholder.
* **Fix** - Issue with Guest Blog Editor toolbar modals.
Under the hood
* **New** - Option to disable eForm activation notice.

Changes:
* **Fix** - Issue with payment retry form.
* **Fix** - Issue with ZIP code field not accepting alphanumeric codes.
Under the hood:
* **Update** - Move `hiddens` method to `IPT_Plugin_UIF_Base` to expose to all classes.
* **Update** - Updated Composer dependencies to latest (`Stripe`).