Update NMatrix documentation
Fixed typo in Pjotr's post
Made a few edits to Naoki's post
Merge pull request #6 from agarie/update_nmatrix_source

Update NMatrix documentation
Merge branch 'source' of github.com:SciRuby/sciruby.com into source
intro to minimization and integration project added
Update 2014-06-04-introduction-to-the-minimization-and-integration-project.markdown
Added Magdalen's post
Merge branch 'source' of https://github.com/rajatkapoor/sciruby.com into source
Rajat's post, fixes #12
Added Lahiru's posts and updated editor's note in Rajat's since it had a
similar title.
updates
one more method added
Merge branch 'source' of https://github.com/rajatkapoor/sciruby.com into rajatkapoor-source
Edited Rajat's post
Updated tags
A few edits to Rajat's post
Updates
Merge branch 'source' of https://github.com/domitry/sciruby.com into domitry-source
Edited Naoki's update