Merge pull request #769 from gvwilson/gh-pages

Updating gh-pages from master
Merge pull request #770 from swcarpentry/master

Adition to #769 (Updating gh-pages from master)
Merge pull request #776 from gvwilson/gh-pages

Merging latest changes on master into gh-pages
Comment optional item at YAML header
Merge pull request #777 from r-gaia-cs/optional-yaml-header-element

Comment optional item at YAML header
Merge branch 'gh-pages' of github.com:swcarpentry/bc into gh-pages
rename "Miscellaneous" header
info on how to display the menu bar
Merge pull request #783 from fmichonneau/menu-bar-firefox

info on how to display the menu bar
Merge pull request #793 from swcarpentry/master

Merge master into gh-pages
added section matlab gui

* added section about matlab gui elements
* added paragraph about matlab documentary
lesson 1 update

* fixed typos
* moved workspace section
* removed “current “folder”
update lesson 1

* added paragraph to ensure everyone’s setting the path at the start of
the lesson
Merge pull request #782 from fmichonneau/rename-header

rename "Miscellaneous" header "All operating systems"

I'm merging this now. If someone has a better suggestion for this header, please let me know.
update lesson 1

* word wrap
* moved current dir paragraph
Merge pull request #794 from IsaKiko/novice_matlab_lesson1_review

Added some notes on the MATLAB GUI and setting the working directory.
Fix python-operations-across-axes.svg

The "1" was getting cut off at the right.
I fixed this by exporting the entire drawing area to SVG
in LibreOffice from the ODG source, then manually resizing
the document in Inkscape (and saving as a plain SVG).