When WP_CONTENT_DIR is changed WPCOM_Concat_Utils::realpath fails

[drrobotnik]

Related to #28.

When you separate your WordPress install and the wp-content directory via WP_CONTENT_DIR realpath fails and will never concatenate your theme and plugin scripts. I started working on a patch but found that even when I got realpath to account for this set-up line 103 in jsconcat.php has conditionals that continue to break in this kind of set-up.

I discovered this in a multisite sub-domain install configuration, haven't tested on the default set-up.

[pdemaria]

Second this, the plugin doesn't appear to work when Wordpress is simply installed in a subdirectory... 404s galore...

Probably a slicker way to work out pathing? Plus the nginx instructions are a little vague...

Granted, my nginx config was boilerplate Laravel Homestead >>> Laravel Forge... so it's entirely possible I've mangled it making other adjustments. Help?