Make net-im/blight depend on dev-scheme/racket[X]

dev-scheme/racket has to have X support in order for Blight to work
Masked net-im/blight-9999 due to src_prepare()-fetch errors.
Added lehitoskin to AUTHORS.
Is tox-gui tox-gui-qt?
Merge pull request #14 from zetok/blight

Make net-im/blight depend on dev-scheme/racket[X]
Update email
Added ebuild for uTox (https://github.com/notsecure/uTox)
Fixed ebuild