Add PGO scripts
Add initial Git support
Rebase scripts to current version

- Add Git support
- Add PGO and concurrent build support
- Improve last_revision checking, broken with concurrent builds
Add PHP 5.5 support and new build variables for debug and appver
Add PHP 5.5 support and new build variables for debug and appver
Re-enable json uploading
Support Apache2.4
VC11 Support
More VC11 support and improve FTP uploads
Fix path name in upload_file_curl()