Add images for lesson
Added info about man command and file naming with whitespaces
Added sublime to text editors
Marking work for tomorrow
Update 00-intro.md

Alters language to de-emphasize CSV
Update 01-format-data.md

Fix spelling mistakes
Update 02-common-mistakes.md

Adds section on special characters
Update 03-dates-as-data.md

Adds notes on historical dates
Update 04-quality-control.md

Adds point about numerical vs text sorting
Update 05-exporting-data.md

Adds note on cross-platform compatibility
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 #13 from cbahlai/patch-3

Update 00-intro.md
Merge pull request #14 from cbahlai/patch-4

Update 01-format-data.md
Merge pull request #15 from cbahlai/patch-5

Update 02-common-mistakes.md
Merge pull request #16 from cbahlai/patch-6

Adds notes on historical dates to dates-as-data.
Merge pull request #17 from cbahlai/patch-7

Adds point about numerical vs text sorting to quality-control.
Merge pull request #18 from cbahlai/patch-8

Adds note on cross-platform compatibility to 05-exporting-data.md
added data checking lesson
woops, formatting