Starting to outline a translation of the MATLAB materials
First commit
Added array manipulation
First draft of intro
Fixed index
fixed typos
first review corrections.
Merge remote-tracking branch 'origin/translating-novice-intro-into-matlab' into translate-to-matlab

Conflicts:
	novice/matlab/index.md
fixed output in wrong box
Matlab->MATLAB, minor changes
Added section on slicing
Renamed section
Update 01-general.md
Fix GPL name

GPL is the acronym for General Public License although it is
from the GNU Project.
Beginning translation of 02-func
Added "composing functions" section
added 02-func .m files
First draft of 02-func
Merge pull request #637 from lsblakk/master

Two additions to the guide
Adding a link from the novice Git index to the lesson on setting up SSH keys.
This closes #642.