*/*: update NGINX JavaScript 0.7.9 -> 0.7.10

Bump PORTREVISION for www/nginx-devel.

<ChangeLog>
nginx modules:

*) Feature: added Request, Response and Headers ctors in Fetch API.

*) Bugfix: fixed nginx logger callback for calls in master process.

Core:

*) Feature: added signal support in CLI.

*) Feature: added "xml" module for working with XML documents.

*) Feature: extended support for symmetric and asymmetric keys
   in WebCrypto. Most notably JWK format for importKey() was added.

*) Feature: extended support for symmetric and asymmetric keys
   in WebCrypto. Most notably JWK format for importKey() was added.
   generateKey() and exportKey() were also implemented.

*) Feature: added String.prototype.replaceAll().

*) Bugfix: fixed for(expr1; conditional syntax error handling.

*) Bugfix: fixed Object.values() and Object.entries() with external
   objects.

*) Bugfix: fixed RegExp.prototype[@@replace]().

</ChangeLog>