You can now adjust how much it scrolls when the mouse wheel is scrolled
as well as enabling scrolling via a mouse drag.

--HG--
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--HG--
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some extra mutex locks to the global singleton in the gui core.

--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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since this is now mostly untrue.

--HG--
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--HG--
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objects at the global scope

--HG--
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--HG--
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and also made the dlib thread pool not block the termination of the program
if there are still threads executing.

--HG--
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--HG--
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argument that lets you know the status of any buttons currently
depressed

--HG--
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--HG--
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some versions of gcc don't end up doing the right thing when -O3 is supplied.

--HG--
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    unpleasant way when the horizontal and vertical scroll increments weren't set
    to the same value.
  - Generally made the specs more clear and added some missing requires clauses.

--HG--
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so that it won't cause any ambiguities when you derive a class from a
gui widget and a thread base class.

--HG--
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added a way to set a minimum tolerance.  This also breaks backwards
compatibility with the previous serialization format for the object.

--HG--
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--HG--
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--HG--
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--HG--
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--HG--
rename : examples/krls_ex.cpp => examples/rvm_regression_ex.cpp
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--HG--
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--HG--
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the min_change parameter.

--HG--
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come out of valgrind.

--HG--
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--HG--
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--HG--
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--HG--
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uninitialized variables.

--HG--
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into a drive on windows that wasn't mounted you got an error.
This is now fixed.

--HG--
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 - made the dir_nav stuff compile in vc, cygwin, and mingw

--HG--
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as well as dlib::queue objects.

--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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functions that use scoped_ptr objects instead of just plain pointers.

--HG--
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--HG--
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