friend functions when they aren't declared in this way.

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--HG--
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--HG--
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is less likely to indicate failure.

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the scale_rows_columns.cpp test file to matrix4.cpp.

--HG--
rename : dlib/test/scale_rows_columns.cpp => dlib/test/matrix4.cpp
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   size().  This way, linearly_independent_subset_finder objects can be used in many
   templated functions which expect objects which look like arrays.
 - Generalized the kernel_matrix() function slightly so that it can work with anything
   that looks like an array.  This now includes linearly_independent_subset_finder objects.

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since it conflicts with the new one in some cases.

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a matrix via vector_to_matrix()

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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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use / regardless of which platform htmlify executes under.

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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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--HG--
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properly (i.e. doesn't crash or output the wrong results)

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syevr is supposed to be better.

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right against newer versions.

--HG--
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--HG--
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--HG--
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