Merge commit 'c5a65e5ed7d3b36e4a24c88aff0077d05a400866'

Conflicts:
	LocalCommunities/private/OptionStruct.m
Merge commit '55ca8d7cf235e7274fb1bfe7b7ad1f3af2421ec2'
Merge commit 'aa9cd2cbc518d6f771cfefb2a135957f8c811f01'
Merge commit '4b9c02cfacdc660d76905aca2d552cff986491b5'
Merge commit '1a7b616dc19c42572dee21ad13f26c234d32eb8b'
Catch failed incomplete Cholesky factorisation (run without preconditioning in that case)
Fix bug with random node sampling (old version only sampled nodes once instead of every time it is called)
New version: 1.02, Author: Lucas G. S. Jeub, Email: jeub@maths.ox.ac.uk