Add PHPDoc support to config-php and move Database definition
Rename MySQL Server to MySQL Host and make small changes to the config.php
Add the index page (loads the load page) and the load page (which loads everything)
Add `constants.php` with constants required for checking the setup.
Add initial English translation for main app
Include functions for translations.
Add `/includes/checkserver.php` to check the server config before running.
This file contains functions to check the server, which are run by `load.php`
Create "blank" /files directory
The .gitignore file is to allow the directory to be versioned, and to stop Git from
asking you to stage the files you have uploaded in your own test server.
Move constants.php to the install root
I also:
* Moved the INCLUDES and CONTENT definitions to constants.php
Make pwVersion contain "alpha" / "beta" / "RCx" / .etc
Add FILES_DIR to config.php
Update strings for English and add comments describing them
Prevent config.php from accidentally getting pushed to the repo.
Move REQUIRE and INCLUDE calls to includes/load-includes.php and REQUIRE that in load.php
Update PHPDoc comment in load.php

load.php still has info about includes/checkserver.php, which is now loaded by load-includes.php
Also adjust the See Also section take them out of being inline and add them to the main DocBlock.
Create a LOADED constant, so that a script knows if it was loaded via load.php or not.
Adjust comments in constants.php
Add the PATH constant to constants.php
Update translation strings, including a fix to allow CrowdIn to read the file.
Update the index.php header comment.