In this comment on fc358d6, Remi pointed out that moving phongo_version.h out of the root directory and into src/ no longer allows PECL's release-upload.php script to verify the version number.

This is not a blocker, but it does mean PECL will be unable to alert us to an inconsistent version number if we ever make a release without also bumping our version constants.

This can be addressed in one of two ways:

• Move phongo_version.h back to the root directory
• Remove phongo_version.h and move its constants to php_phongo.h, which is already in the root directory.