learning tools.

structural SVM solver.

a symmetric matrix was used along with the LAPACK bindings.

whenever you release the mouse button or add more points.

Fix dlib tests for c++11

c++11 std::mutex clashes with dlib::mutex when:

using namespace std;
using namespace dlib;

macros compile when invoked outside dlib namespace.

has a timeout parameter, so the connect() call should use that rather than
adding another.

rendering problem in perspective_display that appeared when drawing lines on
displays that weren't positioned at the upper left corner of the entire window.

used with objects that have non-square bounding boxes.  This has been fixed but
will cause models that were trained with the previous version of dlib to not
work as accurately if they used non-square boxes.  So you might have to retrain
your models when updating dlib.

by holding shift and right clicking and dragging.

new example code into face_detector.py and added some comments.

Merge branch 'py_det_conf_and_idx' of https://github.com/jackculpepper/dlib into jackculpepper-py_det_conf_and_idx

images.