Log Message:
Update to tightvncviewer 1.2.6.  Notable changes:
- install app-defaults and (the now available) manual page
- improved full-screen scrolling
- fixed repeated challenge replay attack vulnerability, bugtraq id 5296
- handle XCursor encoding operating on the framebuffer instead of setting new
  cursors directly in X.
- Made grabbing the keyboard optional in full-screen mode, new boolean
  "grabKeyboard" X resource added to control this behavior.
- applied patch to solve keyboard focus problems in full-screen mode