0.0.0 - Starting from old version. Some features may not be working. My
idea is to implement each of the scripts as a bin to be installed
using setup.py and the entry_points keyword.
0.1.0 - xjoin was released again. It is working and installed using
entry_points.
0.2.0 - mkcube can now be called as script again and it is installed using
pip.
0.3.0 - phmxtractor can now be called as script again and it is installed
using pip.
0.4.0 - phmfit can now be called as script again and it is installed using
pip.
0.4.1 - phmfit now stores fit parameters in the header.
0.5.0 - phmapply back to work.
0.6.0 - Add tools to combine Bias and Flats.