Add contributing information.
Merge pull request #84 from bridgethillyer/master

Add contributing information.
Update raw.github url
Merge pull request #86 from rachelmyers/patch-1

Update raw.github url
Merge pull request #89 from clojurebridge-sf/master

Changes made for the San Francisco workshop - for team review
Merge pull request #91 from clojurebridge-sf/master

Latest round of changes from SF for review
Replace Hoplon-generated slides with plain HTML ones
Merge pull request #93 from cndreisbach/unhoplon

Remove hoplon; replace with plain HTML
fix minor formatting issues
add screenshot of Light Table first-run dialog
Merge pull request #95 from davidchambers/light-table

add screenshot of Light Table first-run dialog
Merge pull request #94 from davidchambers/outline

fix minor formatting issues
s/global_growth/global-growth/

`lein new clojurebridge global-growth` creates a top-level directory
named "global-growth". This commit tweaks the `cd` argument to match.
Add reference to curriculum Google group
clarify namespace workflow
fix for issue #54 plus some reorganization, removed into which didn't have an example and more info on exercises
added file
fixed formatting
added some more examples of data structures and how to use them
incorporated feedback from Norman