Support Emacs 29 and master branch

Added

• Add php-topsy-beginning-of-defun-with-class to display classname with function signature. (#766)
• Add missing __DIR__ to php-magical-constants (#756, thanks @piotrkwiecinski)

Changed

• Make developer build task in Makefile now depends on Eask. (#762, thanks @jcs090218)
  • This change does not affect package installation users
  • Read CONTRIBUTING.md if you prefer to build it yourself from zip or tar ball

Fixed

• Fixed build failure in Emacs on master branch (#764, #765, #767, thanks @takeokunn)

Removed

• Removed Phan-specific features from php-project (#754)
• Removed Cask and Keg metadata files for building (#770)