Extensions for peak controller. Fulfills request 144.
Merge pull request #53 from JohannesLorenz/stable-0.4

Extensions for peak controller. Fulfills request 144.
RemoteVstPlugin: use intptr_t for X11 window ID
VstPlugin: use regular int for version property
Replaced [S/U]int[8/16/32] with types from stdint.h or plain integers