FindDocutils now fails nicely if python isn't found on windows.

When building smtk on windows machines without python, you can't complete
the configuration as FindDocutils has a hard python requirement with no
option to disable the search.
Remove unneeded detection of python interp from doc CMakeLists.txt

The python interp is not used by the doc CMakeLists.txt so don't look for it.
Only search for python if we have enabled shiboken.
Correctly include iterator header for compilation on VisualStudio.
Merge topic 'vs2010_iterators'

388c6ff Correctly include iterator header for compilation on VisualStudio.
Merge topic 'handle_windows_no_python'

38f34b4 Only search for python if we have enabled shiboken.
092749b Remove unneeded detection of python interp from doc CMakeLists.txt
b4033b5 FindDocutils now fails nicely if python isn't found on windows.
Eliminate warnings.
Fancy command-line parsing for CGM operator test.

Now operator parameters can be specified on the command line.
Merge topic 'tweak-cgm'

0fbf7e1 Fancy command-line parsing for CGM operator test.
19d817c Eliminate warnings.
Add method to remove a whole model from a Manager.

This is useful for operators that require a model to be rewritten.
Expose the Operator class in Python and add tests.

These tests use the CGM operators from Python.
Merge topic 'python-tests'

35a3836 Expose the Operator class in Python and add tests.
c69fb5c Add method to remove a whole model from a Manager.
Fix stupid things.
Merge topic 'fixes'

2891ed1 Fix stupid things.