new post
remove the `.p` class

pygments generates markup that uses this class but not in a way that
means "paragraph", so it screws up the line heigh of the
syntax-highlighted code.
make the code samples look better

* prevent inline code from bumping the line heigh of the line its on
* don't stretch code letter spacing
* remove explicit line-height
Merge pull request #18 from stitchfix/post/unambitious-angular-apps

New post + typography fixes