b4he.com

Add new site.
casimages.com

Add new site.
cubeupload.com

Add new site.
digitalfrenzy.net

Add new site.
dwimg.com

Add new site.
emptypix.com

Add new site.
Merge pull request #240 from RickyChien/b4he

b4he.com
closes #46
Merge pull request #241 from RickyChien/casimages

casimages.com
closes #47
Merge pull request #242 from RickyChien/cubeupload

cubeupload.com
closes #48
Merge pull request #243 from RickyChien/digitalfrenzy

digitalfrenzy.net
closes #51
Merge pull request #244 from RickyChien/emptypix

emptypix.com
closes #54
Merge pull request #245 from RickyChien/dwimg

dwimg.com
closes #53
Extract site.
Merge site.
Update readme and changelog.
imgboo.me

Obsolete domain name (closes #248).
imgpay.me

Obsolete domain name (closes #249).
imageback.info

Dead site (closes #250).
imagepong.info

Dead site (closes #251).
imagefruit.com

Add site variation (closes #252).