Log Message:
Updated net/tightvncviewer to 1.2.7.  Pkgsrc changes include:

  - Use {CONFIGURE,BUILD,INSTALL}_DIRS to use the usual do-build and
    do-install targets.

  - Remove a patch that's unneeded in the buildlink2 world.

Changes from version 1.2.6 include:

  - The most significant problem with local cursor hadling has been solved
    -- now clients can see remote cursor movements performed on the server
    or by another client. New PointerPos encoding and cursor shape updates
    both minimize bandwidth requirements and greatly improve responsiveness
    of the mouse pointer, while still allow to track correct pointer
    position in all situations.

  - In all the places where display numbers had to be used, now it's easy
    to use port numbers as well. The viewers now allow to use new
    "hostname::port" syntax, in addition to the traditional
    "hostname:display" format.

  - Other minor improvements and bugfixes.