ICA/libvncclient/libvncserver: updated to current Git HEAD

Updated libvncclient/libvncserver to up to commit
7c9ef6372d3ce2942fe78e853c611e269f68eb69

Amandeep Singh (2):
      Fix crash in krfb
      allow rfbInitSockets with non-ready states.

Johannes Schindelin (10):
      libvncclient: If we have TLS support, enable VeNCrypt by default

Matthias Treydte (2):
      Initialize padding in SetFormatAndEncodings' rfbSetPixelFormatMsg.

Will Thompson (2):
      x11vnc: fix double X_UNLOCK on xrandr events

dextero (1):
      x11vnc: adjust blackout region coordinates to the clipping region

newsoft (2):
      Fix integer overflow in MallocFrameBuffer()
      Check for MallocFrameBuffer() return value