[PixHost] Support for older .org domain

[taskhawk]

PixHost used to use an .org domain, and while downloading older posts in Bellazon I found out there are image links pointing there that still work if the domain is changed to .to.

Example: https://www.bellazon.com/main/topic/56-candids/page/526/#comment-4383131

Old Domain:
https://pixhost.org/show/56/48620061_hqcelebcorner-1.jpg

New Domain:
https://pixhost.to/show/56/48620061_hqcelebcorner-1.jpg