Merge pull request #12 from clavaque/000000-dev

Removed all remaining (R)s, I think.
Adding new feature: Simultaneous Login Monitoring
Adding notes to Login Welcome Page panel regarding Front Page and Posts Page being invalid settings for the Login Welcome Page.
Releasing s2Member and s2Member Pro v131025
Fixing changelog to escape Shortcodes for display at s2Member.com
Fixing changelog to escape Shortcodes for display at s2Member.com
Fixing changelog to escape Shortcodes for display at s2Member.com
* (s2Member) **WordPress v3.7 Compatibility** s2Member further updated to support subtle changes in the WordPress v3.7 `wp-login.php` file. This release corrects a minor issue w/ patches applied by s2Member when running in a Multisite Network environment. If you are running s2Member on a Multisite Network, please be sure to run the automatic patcher provided in your Dashboard against WordPress v3.7 after updating to this release of s2Member.
* (s2Member Pro) **PayPal Central IPN** Updating the example file: `s2m-pro-extras/paypal-central-ipn.php` to use one of the latest PayPal IP addresses listed [here](https://ppmts.custhelp.com/app/answers/detail/a_id/92).
Releasing s2Member and s2Member Pro v131026
JavaScript/CSS Lazy Loading; PHP Notices Fixed

- Lazy load s2Member's JS file at all times.
- Move s2Member's JS file to the footer when possible.
- Remove dependence on password-strength-meter.
- Lazy load CSS file at all times.
- Resolve some of the most obvious PHP notices.
Remove (r) from plugin title in readme.txt
Merge pull request #13 from raamdev/000000-dev

Remove (r) from plugin title in readme.txt
Updating no-cache handlers for compatibility with the latest release of Quick Cache Pro.
Merge remote-tracking branch 'origin/000000-dev' into 000000-dev
Bringing UI inline w/ Quick Cache Pro and s2Clean
Further enhancements. Bringing UI inline w/ Quick Cache Pro and s2Clean
Further enhancements. Bringing UI inline w/ Quick Cache Pro and s2Clean
Adding screenshots for WordPress.org.
Preparing changelog for v131108.
Updating changelog for v131108. Improving support for Checkout Options.