Add basic docs copied from SymPy
Update .gitignore
Tear down tutorial to bear minimum

Conflicts:
	tutorial_sphinx/_build/doctrees/aboutus.doctree
	tutorial_sphinx/_build/doctrees/environment.pickle
	tutorial_sphinx/_build/doctrees/gotchas.doctree
	tutorial_sphinx/_build/doctrees/index.doctree
	tutorial_sphinx/_build/doctrees/tutorial/index.doctree
	tutorial_sphinx/_build/doctrees/tutorial/simplification.doctree
	tutorial_sphinx/_build/html/_sources/aboutus.txt
	tutorial_sphinx/_build/html/_sources/gotchas.txt
	tutorial_sphinx/_build/html/_sources/index.txt
	tutorial_sphinx/_build/html/_sources/tutorial/simplification.txt
	tutorial_sphinx/_build/html/aboutus.html
	tutorial_sphinx/_build/html/genindex.html
	tutorial_sphinx/_build/html/gotchas.html
	tutorial_sphinx/_build/html/index.html
	tutorial_sphinx/_build/html/np-modindex.html
	tutorial_sphinx/_build/html/objects.inv
	tutorial_sphinx/_build/html/py-modindex.html
	tutorial_sphinx/_build/html/searchindex.js
	tutorial_sphinx/_build/html/tutorial/printing.html
	tutorial_sphinx/_build/html/tutorial/simplification.html
	tutorial_sphinx/src/.DS_Store
Add _build to .gitignore