GitLab

Fixes #2.

Probably needs a new name.

Improve use of global space by declaring a local variable global, rather than always using the Superglobal.

It's easier to read, especially with the use of the `$_SERVER` superglobal.

Conslidates debug messages and prevents them from corrupting XML layouts.

Revert helper function for loading WP, introduced in 25ebf3a1. It causes the brokenness noted in that commit, somehow related to calling require_once inside a function.

Currently broken (causes an error with $wpdb).

Clarify purpose of `cache` flag by renaming to `cached` as it indicates that the current page was served from cache

Move configuration into a global and update all references. Makes for clearer separation of user options versus plugin code.

Improve detection for logged-in users and correct order of operations to ensure logged-in users aren't shown cached pages.

Add support for non-standard port and database values, remove dangerous information from debugging output.

Remove spurious whitespace from cached values to reduce validation errors and condense output buffer interaction for simpler code.