Reverting to commit a4e34cb0: "Fix README mistakes." after inappropiately adding the build directory. Only want to include build html files. This reverts commit a4e34cb0.
Removed old html files. Will now include _build directory in repo because these are the local html files we would like for Simulink Block Help.
CASPER Block Documentation. Created from using the crawl_block_docs.py script to crawl old wiki pages. Pandoc was used to convert html to rst for autogenerated Sphinx documentation.