make sure we move to the simplestats directory to make README.md
Fixed spacing on code for better copying and pasting in ipython
Remove discussion of `is` in "Write Code for People"

It's rarely-used (I write a lot of python and basically
never use it) and really special-case-y. It's mostly
useful for `if foo is None` but we don't ever cover
`None`, so there's that. And `is` doesn't come up in
any of the rest of the curriculum.

Anyhow, we never cover whitespace in the current
version, so we'll need space from somewhere.
Format short exercises consistently
moved exercise into discussion of generalizing code and reformatted
Merge pull request #60 from dmnielsen/2014-08-04-Davidson

Fixed spacing on code for better copying and pasting in ipython
Merge pull request #63 from kliph/2014-08-04-Davidson

make sure we move to the simplestats directory to make README.md
Merge pull request #59 from njvack/remove_is_discussion

Remove discussion of `is` in "Write Code for People"
Reorganize "Writing Code for People"

Now it goes:

Variables
Naming Variables
Comments
Data Types
Ints and Floats
Data Operations (really: more ints and floats)
Lists
Assigning Variables to Other Variables
Tuples
Dictionaries
Sets
Conditionals

... which I think flows a lot better
Revert path editing stuff

we won't need it after all
Merge pull request #64 from njvack/reorg-dont-repeat

Reorg dont repeat
Merge remote-tracking branch 'upstream/2014-08-04-Davidson' into 2014-08-04-Davidson

Conflicts:
	python/writing_code_for_people/Readme.md