Added Da for Shell example
Merge commit 'eaa809f' from git://tremily.us/swc-modular-shell-hearing into shell

* commit 'eaa809f':
  Added Da for Shell example
Merge commit '6af7758' from git://tremily.us/swc-modular-shell-dictionary into shell

* commit '6af7758':
  Added a dictionary to 1-Shell directory to demonstrate searching in less.  Necessary to replace /usr/share/dict/american-english that went away when we changed VMs.
lessons/shell: Reorganize to match initial bc import

Match the file names from 2cc715f (Importing legacy shell lesson,
2013-07-18).
Importing legacy shell lesson

W. Trevor King: I resolved both conflicts with:

  $ git checkout 2cc715f -- lessons/{index.html,shell/tutorial.md}

There is a surprising amount of divergence between Greg's tutorial.md
in the original 2cc715f and the shell/Readme.md that was current in
boot-camps as of 2013-07-18 when Greg created 2cc715f.  The
then-current boot-camps version of shell/Readme.md had a hash of
bb9592b and was created by commit 9ca5e3f (Changing 'git clone' URL in
shell README to the read-only git:// URL., 2013-05-13).  This matches
the hash after commit e3a10f8 in my cherry-picked
git://tremily.us/swc-modular-shell repository, so I'm not sure where
the missmatch comes from.  Perhaps Greg just edited the file fairly
extensively before committing 2cc715f?

Conflicts:
	lessons/index.html
	lessons/shell/tutorial.md
Renaming shell and git tutorials to allow for others beside them

W. Trevor King: This history-reconstruction is for the shell tutorial,
so I removed the Git portion of this commit:

  $ git rm -rf lessons/thw-git

Conflicts:
	lessons/thw-git/instructors.md
	lessons/thw-git/local.md
	lessons/thw-git/remote.md
Fixing typos in material imported from THW

W. Trevor King: This history-reconstruction is for the shell tutorial,
so I removed the non-shell portions of this commit:

  $ git rm -rf lessons/thw-{git,matplotlib,numpy,python,testing}

Conflicts:
	lessons/thw-git/local.md
	lessons/thw-git/remote.md
	lessons/thw-matplotlib/tutorial.md
	lessons/thw-numpy/tutorial.md
	lessons/thw-python/data-structures/data_structures.ipynb
	lessons/thw-python/data-structures/tutorial.md
	lessons/thw-python/flow-control/python_flow_control.ipynb
	lessons/thw-testing/tutorial.md
coverted tutorial to ipynb

W. Trevor King: I resolved the conflicts with:

  $ git checkout HEAD -- lessons/shell/tutorial.md

because Anthony restores the Markdown version in e773e8d
(reconstituted markdown version of shell tutorial, 2013-09-05).  By
not removing it here, we make life easier for 'git blame' and 'git log
--follow'.

Conflicts:
	lessons/shell/tutorial.md
Suspected typo but not sure? bootcamp_slug? Otherwise just renders the command as `cd`
Merge branch 'shell' into bc-shell

I resolved the conflicts with:

  $ git checkout HEAD -- lessons/index.html

Other than that, the merged branch exactly matches the current bc
repository, and this history injection allows folks to use 'git log
--follow' to do archeology on the shell lesson.  Apparently 'git
blame' prefers the first parent of commits where a file exists on each
side, so blame still attributes most Readme.md lines to Greg's 2cc715f
(Importing legacy shell lesson, 2013-07-18).  If you want the history
leading up to that commit, I recommend you use:

  $ git blame 93632b2 -- lessons/shell/tutorial.md

I don't know of a way to fix the default blame output that doesn't
involve filter-branching the history into bc.

* shell: (61 commits)
  Suspected typo but not sure? bootcamp_slug? Otherwise just renders the command as `cd`
  coverted tutorial to ipynb
  Fixing typos in material imported from THW
  Renaming shell and git tutorials to allow for others beside them
  Importing legacy shell lesson
  lessons/shell: Reorganize to match initial bc import
  Added Da for Shell example
  Added a dictionary to 1-Shell directory to demonstrate searching in less.  Necessary to replace /usr/share/dict/american-english that went away when we changed VMs.
  Changing 'git clone' URL in shell README to the read-only git:// URL.
  Fix shell header
  Added some words about the history command and bang-history # direct access.
  Fix old typo on file size.
  Clean up ambiguity between file and filename.
  There is no executable in the boot-camps directory - need to cd to shell dir first.
  remove some spaces getting in the way of bold
  Seem to have the tables figured out - they need a header - annoying
  Can we get some documentation on tables
  A few more changes to be consistent and clear.
  Some formatting and flow changes:
  Update shell/Readme.md
  ...

Conflicts:
	lessons/index.html