Move files from Pelican(markdown) to Sphinx(rst)
Fix deadlinks in documentation.
Add sutils, ktbs-mgr and ktbs-bench scripts to doc
Update requirements.txt for readthedocs

Remove unecessary dependencies from Pelican.

Make numpy et al. as default so readthedocs can build the docs.
Update README to use Readthedocs
Fix tiny typo in README
Change requirements to https://url for RTD
Add dateutil to requirements for RTD
Fix dateutil package name in requirements
Move dateutil before matplotlib so RTD can build

Hope this is the last trick to make RTD build the docs...
Add six as a requirements for building on RTD
Remove `collectcsv` from the docs and its RTD deps
Merge branch 'maint/move-to-readthedocs'