Adding commons-math to KNOWN-IMPLEMENTATIONS
Merge pull request #68 from Adereth/master

Adding commons-math to KNOWN-IMPLEMENTATIONS
Improve pretty-print spacing on multi-column rows

Signed-off-by: John Poplett <john.poplett@acm.com>
Merge pull request #70 from John-Poplett/master

Improve pretty-print spacing on multi-column rows
Merge branch 'develop' (early part)
Merge branch 'master' of https://github.com/mikera/core.matrix
Merge branch 'master' into develop