make: build debians before installing local

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
PHP: added NSImage, expanded NSFileManager, removed some test code

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
PHP: renamed executables to match bundle executable name (except for .php extension)

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
PHP: updated include path for "executables"

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>