Remove WWW entries moved into port Makefiles
Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
Approved by: portmgr (tcberner)
archivers/rubygem-ruby-xz: create port
These are simple Ruby bindings for the liblzma library
(http://tukaani.org/xz/), which is best known for the extreme compression
ratio. Since FFI is used to implement the bindings, no compilation is needed
and they should work with JRuby as well.