where to put the xhp php7 repo

[firodj]

hi @sgolemon , We are at KMK-ONLINE (KMKlabs) already use XHP on HHVM and want that XHP feature to be enabled on PHP7. So that at that time we didnt find if there is a work for PHP7 version, becuase the github Fork graph didnot include this phplang/xhp repo. Please review our forked repo at https://github.com/KMK-ONLINE/xhp-php7-extension and if it is possible to PR our works to this phplang/xhp for community. Thanks

[pprkut]

I think a good first step would be to figure out the differences between the two. Reviewing the entire repo as a whole is a bit too big of a task I fear, so if you could split it up into incremental improvements and open pull requests for each, I doubt it's not getting looked at.