to change the label for a rectangle.

label.

gcc 4.8.

it lets you use a regularizer like ||w-prior||^2 instead of the usual ||w||^2
regularizer.

auto-completion based on ctags, which is annoying.

like the cv_image.

explicitly specify the dimensions of the extracted chips.

dimensions.

violate the one definition rule with inconsistent assert enabling.

but not ENABLE_ASSERTS.

there were a lot of samples, causing it to take an excessive amount
of time to converge in some cases.  This fixes it.

column vectors always enabled since violating this is a common user error.

features as a column vector but by reference instead of by value.