* grip/command.py: Version before install
Running version with --export option
Cleanup Todo s and stuff
Merge branch 'master' of https://github.com/iliggio/grip into export-option

Conflicts:
	README.md
	grip/command.py
	grip/renderer.py
PEP8, rename variables, and import error fixes.
Cleanup write_html.
Fix export option.

* Using new settings
* Add missing arguments
Fix image check if MIMETYPE can't be guessed.
Use normpath instead of custom logic.
Remove excess newlines in HTML.
Use index.html for all rendering.
Use a copy of the styles list config.
Add rest of added features to exporter.
README wording.
Use AUTHORS as the export example in README.
Cleanup exporter by re-using Flask application.
Update API section in README.
Fix README port typo.
Add create_app and export to API.
Extract render_app.