Merge pull request #26 from dgraziotin/master

Heading to v1.2.0
Update TESTING.md
Update README.md

Added "in press" citation for JORS paper
Update README.md
Added CITATION

Added CITATION file as suggested at software.ac.uk/blog/2013-09-02-encouraging-citation-software-introducing-citation-files
Update README.md

Updated reference.
Update CITATION

...why 2011?
Merge remote-tracking branch 'upstream/master'