ENH: Preparing point set metrics for use with registration.

Change-Id: I53e4c1b052b98377e88c5e0351f2fda12963851a
KWSys 2014-04-14 (1979c02d)

Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ 1979c02d | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' dd873734..1979c02d
Brad King (2):
      39f98b5d Encoding: Add self-assignment check to CommandLineArguments
      1979c02d hashtable: Poison operator= on internal node type

Gerhard Grimm (1):
      fa86f1ba SystemInformation: Fix HP-UX PA-RISC processor detection

Jiri Malak (1):
      36982798 SystemTools: add Watcom single Quote processing

Rolf Eike Beer (3):
      a8aa1014 SystemInformation: Fix HP-UX Intel processor detection
      a99a9235 set the compile flags for older HP compilers to fix compilation
      8b085635 MD5: avoid casting back and forth between size_t and int

Change-Id: I2338cfae50b9703cfed4d11d5d68e3cabfcd6ce1
Merge branch 'upstream-kwsys' into update-kwsys

Change-Id: Ie3d680fab007e4bf590156be6cd7c0e710bce549
Merge topic 'PointSetRegTesting'

ec931404 ENH: Preparing point set metrics for use with registration.
Merge topic 'update-kwsys'

f806ba5c Merge branch 'upstream-kwsys' into update-kwsys
76b71d65 KWSys 2014-04-14 (1979c02d)