www/nginx-devel: update NGINX JavaScript module to 0.7.2.

Bump PORTREVISION.

<ChangeLog>

Core:

*) Bugfix: fixed Array.prototype.join() when array is changed

while iterating.

*) Bugfix: fixed Array.prototype.slice() when array is changed

while iterating.

*) Bugfix: fixed Array.prototype.concat() when array is changed

while iterating.

*) Bugfix: fixed Array.prototype.reverse() when array is changed

while iterating.

*) Bugfix: fixed Buffer.concat() with subarrays.

Thanks to Sylvain Etienne.

*) Bugfix: fixed type confusion bug while resolving promises.

*) Bugfix: fixed Function.prototype.apply() with large array

arguments.

*) Bugfix: fixed recursive async function calls.

*) Bugfix: fixed function redeclaration. The bug was introduced

in 0.7.0.

</ChangeLog>