Add:
    bitshift/crawler/git_indexer.py
        -add ChangeDir class, a context-management wrapper for os.chdir().
        -replace unsafe "rm -rf" subprocess call with shutil.rmtree()

Add:
    bitshift/codelet.py
        -add name field to Codelet.

    bitshift/crawler/crawler.py
        -fix previously defunct code (which was committed at a point of
        incompletion) -- incorrect dictionary keys, etc..
        -reformat some function calls' argument alignment to fit PEP standards.

    bitshift/crawler.py
        -add sleep() to ensure that an API query is made at regular intervals
        (determined by the GitHub API limit).

Add:
    bitshift/crawler/(crawler, git_indexer).py
        -move Codelet creation from the crawler to the git_indexer, in
        preparation for making crawling/indexing independent, threaded
        processes.

Mod:
    bitshift/codelet.py
        -modify documentation for the author instance variable.

Add:
    bitshift/crawler/crawler.py
        -add base crawler module
        -add github(), to index Github.
Mod:
    bitshift/crawler/
        -add package subdirectory for the crawler module, and any subsidiary
        modules (eg, git_indexer).

    bitshift/author_files.py > bitshift/crawler/git_indexer.py
        -rename the module to "git_indexer", to better reflect its use.
        -convert from stand-alone script to a module whose functions integrate
        cleanly with the rest of the application.
        -add all necessary, tested functions, with Sphinx documentation.

Add:
    author_files.py
        -add prototype script to output metadata about every file in a Git
        repository: filename, author names, dates of creation and modification.
        -lacking Sphinx documentation.

Add:
    bitshift/codelet.py
        -complete docstrings, add filename to Codelet constructor.

Add:
    bitshift/codelet.py
        -add Codelet class with constructor.

    README.md
        -add SASS stylesheet documentation

Mod:
    bitshift/assets.py
        -convert existing docstrings to the Sphinx auto-doc format.

Conflicts:
	app.py

Add:
	bitshift/assets.py
		-add module that contains functions to be called from inside the
		templates/ Jinja HTML files -- currently contains tag(), which generates
		an HTML asset tag based on a filename.

	bitshift/config.py
		-add Flask configuration module.

	static/(sass/main.sass, css/main.css)
		-create isolated directory for SASS files; compiled CSS files will be
		stored in static/css.

	static/css/_mixins.sass
		-add SASS partial to contain mixins (globally relevant to the project's
		styling).

	templates/layout.html
		-add various metadata.

Add:
	app.py
		-add boilerplate Flask source.

	bitshift/
		-directory for all python source.

	templates/(layout, index).html
		-add global layout template, and placeholder home page.

	static/css/main.sass
		-add placeholder main SASS file.