Fixed doc/_build path in .gitignore
doc: Added sphinx quickstart files
doc: Removed section numbering

Section numbering is pointless if there is only one section per page
doc: Clean up trailing whitespace
doc: Renamed .txt files to .rst

This way Github can render them properly too
doc: Moved logos to _static folder
doc: Added modified flask/jinja2 theme
doc: Fixed latex configuration
doc: Fixed toctree:: in index document
doc: Removed duplicate contents:: directive

The page contents are already displayed in the sidebar
doc: Added links and about sections to the index sidebar
doc: Fixed unicode symbol conversion
doc: Removed duplicate contents:: directive
doc: Added API documentation
doc: Replace index heading by "User Documentation"
doc: Added "Quick Links" section from original wiki
Merge pull request #9 from Turbo87/sphinx

Port Documentation to Sphinx