Issue #265 Revise README and Reference page.
Issue #265 Fix layout of tables in README using HTML.

Unfortunately, the GitHub flavored Markdown does not seem to support tables.
Issue #254 Change order of sections on Reference page.

With descending order, the topics go deeper and deeper into the API starting from the basic command-line tools, over the CMake functions, to the utility functions for the supported programming languages down to the Doxygen documentation links.
Issue #254 Add custom Sphinx theme to fix sidebar and logo links.
Issue #254 Fix style of download links.
Issue #265 Attempt to use Markdown table syntax in README.
Issue #265 Another try regarding Markdown table syntax.
Issue #265 Add links for repository content.
Issue #265 Fix previously added links.
Issue #265 Fix grammar.
Issue #265 Move package content overview to bottom of page.
Issue #265 Shorten sentence to fit it in one line when rendered on GitHub.
Issue #265 Minor edit of previous change.
Issue #265 Fix table entry which spans two rows in README.
Issue #265 Add link to Quick Start Installation to README.
Issue #254 Move history, purpose, and people sections to new about page.
Issue #254 Make download links more prominent.
Issue #254 Full project name in download page description.
Update release date in "beta" release notes.
Issue #254 Minor grammar fix in download section.