Add images for lesson
Added info about man command and file naming with whitespaces
Added sublime to text editors
Marking work for tomorrow
Scripting lesson from NESCent's May 8-9, 2014 workshop.

The lesson started from SWC material on shell scripting, but subsequently
underwent a large-scale rewrite and partial reorganization and narrowing
to strictly focus on shell scripting for building executable data pipelines.
Full history is at NESCent/2014-05-08-datacarpentry@@a372d81 and preceding
commits from me.
Copying gitignore file from NESCent May 2014 workshop.

You don't want R's output files accidentally in your repo. This is essentially
a copy as of NESCent/2014-05-08-datacarpentry@b37cbc0bc99c79735046178c38f53d51b6730438.
Merge pull request #20 from datacarpentry/fix-gitignore

Copying gitignore file from NESCent May 2014 workshop.
Merge pull request #19 from datacarpentry/scripting-lesson

Scripting lesson from NESCent's May 8-9, 2014 workshop.
Merge pull request #21 from wrightaprilm/master

03 and 05
Fixes the email address to use datacarpentry.org.
Fixes the unlinked link for the repo.

For some reason Github doesn't seem to render a hyperlink if the whole
`[text](http://example.com)` is enclosed in backquotes (such as here).
Added contributors' names to the lesson files
fixes in 07-plotting-with-matplotlib, added plots and links
Added image and updated exporting data
Fixed wording in exporting data
Intriduction - added dicts and functions
A stub for lesson on formats - csv / tsv and so on.
Added img file - testing commit
Added example for csv issue
man-related changes in lessons 01 and 06