commit 2014-07-04 13-00 - new branch
commit 2014-07-04 14-36
commit 2014-07-04 15-58
commit 2014-07-07 08-38
commit 2014-07-07 13-23
commit 2014-07-07 15-22
commit 2014-07-07 16-25
commit 2014-07-07 16-54
commit 2014-07-07 19-13
commit 2014-07-07 19-15
commit 2014-07-07 19-16
commit 2014-07-07 19-16
commit 2014-07-07 19-17 - merge matrix