Merge pull request #5 from falkTX/master

Update DPF
Fixed typo

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Patched PUGL to prevent redraw on every frame

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Merge branch 'master' of github.com:zamaudio/zam-plugins-DPF

Conflicts:
	libs/dgl/src/pugl/pugl_x11.c