Merge pull request #1 from eteq/doc-layout

Initial layout of sphinx documentation with development documentation.
Created improved workflow documents based on gitwash documents.
Updates to workflow documentation
Whitespace fixes
Removed gitwash
Removed gitwash from table of contents
Fixed typo in title
Merge pull request #2 from astrofrog/master

Created improved version of workflow documents based on gitwash documents
Fixes to get docs to build without warnings
Emacs configuration examples.

Examples of Emacs settings for ensuring compliance with coding
guidelines.
Changed C-d C-w to C-t C-w.

C-d is for forward delete character.
Moved link to emacs page into the note directive.
Merge pull request #4 from phn/emacs_guide

Emacs configuration examples.
Added toctree to coding guidelines to not have warning when building docs.
Added setup and associated files, including astropy and astropy.version packages
adjusted copyright in docs to match setup.py
added empty licenses and tests directories
added rst_epilog to docs/conf.py to allow _Astropy shortcut link
added data,config, and utils directories
Typo fixes