mangatown.com mobile subdomain support

[Tyf0x]

Hi,

support for the mobile version of mangatown would be greatly appreciated.

The following changes should fix it:

1. Change the match attribute to // @match *://*.mangatown.com/manga/*/*
2. Change the mangatown regex to match: "^https?://(www|m).mangatown.com/manga/[^/]+/[^/]+",

Thanks!