added files for testing lesson
Removed 'next steps'
commented NaN lines in test
fixes after reviewe for 04-cond.md
Minor fixes to 03-func and 04-cond
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
times for shell, python, git, sql
only keep n,median; remove mean,min,max
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