Changes in version 0.2 (2023-12-21)                   

    o   Added new option to guarantee a connected weight matrix in
	sparse_weights().

    o   Replaced some inefficient parts of the C++ code.

    o   Added several options to monitor the algorithm's performance during
	minimization. Monitoring can be turned on using the relevant arguments of
	convex_clusterpath(). Data gathered while monitoring is part of the
	output of convex_clusterpath().