* use relative rather than absolute noise in dream, which lets us fit target values in the order of 1e-6 or less. * fix covariance population initializer
0.7.5.3
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* use --time to stop after a given number of hours * Levenberg-Marquardt: fix "must be 1-d or 2-d" bug * improve curvefit interface
0.7.5.2
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* pull numdifftools dependency into the repository