Removed Schwarz counter that should no longer be necessary.

The Schwarz counter in vtkTimeStamp is no longer needed. Now
the atomic integer classes don't manage any pointers unless
native atomic classes don't exist. In that case, I added a check
for NULL pointers which should handle the case where the global
counter is deleted at exit time.

Change-Id: I038b27fc7fcd43d4c7024108f6ff3808e97b2b3f
Fixed information key initialization to be thread safe.

A long time ago, I had introduced a change to the way information
keys are initialized to address an issue on OS X 10.3. Since we
no longer support OS X 10.3 and we want key initialization to be
thread safe, I reverted that change.

Change-Id: Iaf7956a72c63957b9812569cf7eb092624b12999
Use raw pointers as the map's keys

When a smart pointer is used as the key to a std::map, searching the map
using a raw pointer is very error-prone since (prior to C++14), all
std::map methods expect a key_type object to be created. To fix this, a
raw pointer is used as the key and the smart pointer is stuffed into the
value beside the Python object.

This is a latent bug that could be triggered by using
GetObjectFromPointer which it appears as though only SIP bindings, and
ParaView Qt stuff ever used.

Change-Id: I42cba81053908befe2c1eb4cbdb1fea676b79ce1
Merge topic 'remove-schwarz-counter' into master

47ca0348 Removed Schwarz counter that should no longer be necessary.
BUG: Fix NULL dereference in std::copy argument

Revealed by failed otherEmptyCell test on Debug Visual Studio build

Change-Id: I815eac0bdddd6f9cf1cd4a4bfaca8ecbbc61bc5f
Merge topic 'thread-safe-infokeys' into master

948bd014 Fixed information key initialization to be thread safe.
Merge topic 'fix-python-util-object-tracking' into master

269cbea1 Use raw pointers as the map's keys
Merge topic 'fix-otherEmptyCell-test-timeout' into master

a847fb8a BUG: Fix NULL dereference in std::copy argument
Fix Tcl/exodus build errors.

Install, but don't wrap, the templated in-situ files.

Change-Id: I2b2304a58f1d0b8fdc1198c275c80b2caca33a9d
Merge topic 'fix-exodus-tcl' into master

f1923b8c Fix Tcl/exodus build errors.