Merge pull request #1 from urbach/master

Normalisation of `onlinemeas` fixed
Merge pull request #2 from urbach/master

some bugs fixed, new routines
Merge pull request #3 from urbach/master

some improvements to matrixfit
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
added support for cross-correlators in the disconnected case