fixed "import cv" in the new python samples. corrected Python bindings to match the documentation and vice versa (NOTE: in cv2.stereoCalibrate the parameter ordering has been changed)

Some reST syntax correction. Now the PDF documentation builds correctly under Windows using MIKTEX. Some update on the tutorial structure. Some CSS syntax correction. Windows Install Tutorial v0.4. 

removed trailing backspaces, reduced number of warnings (under MSVC2010 x64) for size_t to int conversion, added handling of samples launch without parameters (should not have abnormal termination if there was no paramaters supplied)

HAVE_CONFIG_H -> HAVE_CVCONFIG_H

continued cleaning up the docs and fixing hyperlinks (".. index:: <name>" and ".. _<name>:" are not needed anymore)

a lot of small corrections to bring down the number of undocumented functions, reported by the script; added em.cpp sample

improved convertPointsHomogeneous documentation. added convertPointsTo/FromHomogeneous (ticket #1011)

started work on API & doc synchronization (in particular, Mat& => Input/OutputArray in the descriptions)

replaced "const InputArray&" => "InputArray"; made InputArray and OutputArray references. added "None()" constant (no array()).