winbuild/pack_the_distribution_for_windows.py minor updates

- it failed when one of the doxygen.exe was not present
Merge branch 'master' of https://github.com/doxygen/doxygen.git
\usepackage{fixltx2e} must come before use \usepackage{float}

The \usepackage{doxygen} statement adds float as a depenency.
If the order is wrong the latex generation fails with:
LaTeX Error: Unknown float option `H'
Fix typo
Bug 727732 - Nested C structures/unions does not work with groups
Bug 731238 - Dead links in html documentation when using tabs for indentation in c++
Bug 730887 - [PATCH] Fix potential copy and paste error in inputstring.cpp
Merge pull request #178 from ellert/master

\usepackage{fixltx2e} must come before use \usepackage{float}
Merge branch 'master' of github.com:doxygen/doxygen
Bug 731363 - Callgraphs for C# only generated for methods inside the same class
Tcl: collect XRefs also if INLINE_SOURCES = no
Merge pull request #179 from jwakely/patch-2

Fix typo
Tcl: recurse for []
Fixed windows compile issue for is_neutral
Merge branch 'master' of github.com:doxygen/doxygen
Added build support for Python3+ and Python2.6+
Fixed typo
doc/translator.py -- unification for Python 2.6+ and 3.3+ (not finished)
Merge branch 'master' into devel
doc/translator.py unified for Python 2.6+ and Python 3.0+

- Open() replaced by xopen() that internally uses the encoding argument
  only for Python 3. The earlier usage of the codecs module and of the
  prefixed unicode string literals was removed.
- Some lists of prototypes were sorted to get the same translator report
  for different versions of Python.
- The local dedent() definition was replaced by textwrap.dedent().
  (The older versions of Python did not have the module.)
- Tested on Windows for Python 2.6.0, 2.7.7, 3.0.1, and 3.4.1.