The opencv element includes were full of duplicates and uneeded headers.
For example a few elements that stopped using gstcvopencvutils still
included that header file.
The cascade classifier changes its structure on new version of OpenCV 2.4.11.
It is need to migrate to C++ to utilize the new load method of OpenCV which
allows to load the old and new classifiers.
https://bugzilla.gnome.org/show_bug.cgi?id=753994
For PROP_PROFILE case that exist inside gst_face_blur_set_property
function loads the new XML file in the CvHaarClassifierCascade property
without first checking that it is released because maybe there is an XML
file previously loaded.
https://bugzilla.gnome.org/show_bug.cgi?id=753994
Changes inside the gst_face_blur_load_profile function, the number of
input parameters and in lines where it is used due to it cannot be used
generically.
https://bugzilla.gnome.org/show_bug.cgi?id=753994
Change the gstfaceblur.c file to cpp and add it into Makefile.
It is necessary to migrate the faceblur plugin to C++,
in order to load new and old classifiers, to make faceblur work
with newer versions of Opencv.
https://bugzilla.gnome.org/show_bug.cgi?id=753994
