Unreadable ReCaptcha

I've been playing with SlimerJS to solve the unreadable ReCaptcha problem. I've managed to get readable image for ReCaptcha. I haven't committed the code, because I'm not sure how to distribute SlimerJS smoothly within FRD. So for now I just attach recaptcha plugin and the source code, and describe the steps to make it works:

- SlimerJS uses XulRunner, so if you have installed Firefox, you can download SlimerJS here. The nightly version is used because the current SlimerJS stable version (v0.9.6) only supports Firefox from 17.0 to 38.0. If you don't have Firefox installed, you can download it here, it depends on OS and arch, for example for Windows: [download.slimerjs.org].

- Copy slimerjs-0.9.6-win32.zip (for Windows standalone stable version) or slimerjs-0.10.0pre.zip (for lightweight nightly version) to "tools" folder inside your FRD installation folder.
- Extract slimerjs-0.9.6-win32.zip or slimerjs-0.10.0pre.zip. You'll get slimerjs-0.9.6-win32 or slimerjs-0.10.0pre folder, rename it to slimerjs.
- Copy recaptcha.frp (attached to this post) to FRD plugin folder.

Tested with filejoker, nitroflare plugins.

ReCaptcha plugin source code (recaptcha.zip) also attached to this post.

Note to devs: In order to make it works inside IDE, you'll have to copy the slimerjs folder to the "lib/tools" folder inside plugin's source code main folder.