v0.7.2

Changed

• T1 mapping data is now assumed to have been magnitude corrected if the first percentile of the first inversion time is
  negative rather than the minimum value. This should make it more robust to noise/preprocessing artefacts. #222 #223

Added

• Export the fit signals from mapping functions e.g. the expected T1 recovery at times TI given the fit values of T1 and M0. #221
• Warnings if there aren't many negative values in T1 mapping data. #222 #223
• get_fit_signal methods have been added to most mapping classes to allow the user to get the fit signal at a given time point.

Fixed

• Issue where resources sub-module was not included on PyPI