Fix OSERHA VistA Installation Documentation

README.rst:

 * Move ObtainingTestingCode section in front of PrepareMComponents, as
   PrepareMComponents script is indeed in VistA repository.

InstallCache.rst:

 * Mention that the instruction should apply for Cache 2013, the latest version that is
   available for download.
 * Add a link to Nancy's original installation guide for Cache 5.2.
 * Also move the actual figure link to second line for easy diff.

ObtainingVistAMCode.rst:

 * Fix the rst syntax error in Mumps code line.
 * Also apply similar change to ZU.m routine.
 * Add links to ZU and ZUONT routine source code.

ObtainingandInstallAuxPrograms.rst:

 * For python, explicitly specify the version requirement.
 * Add a section for Windows platform.
 * Introduce VistATestClient interface.

PrepareMComponents.rst:

 * Explicit mention that PrepareMComponents python script is from VistA repository.
 * Add a command line to go to VistA repository directory.

ImportCache.rst:
Initialized.py.in:

 * Change the terminal device from TRM to |TRM|:| after telnet device change
   to allow user to continue use default IO.

Also re-format documentation above to limit max characters per line to 80.

Reported-by: Anthony Currans <anthony.currans@va.gov>

OSERHA-Id: http://issues.osehra.org/browse/OAT-101
Change-Id: I06240cb9c06250d766ba92aa7f55bfba977c656e
Merge "Fix OSERHA VistA Installation Documentation"