Check for the existence of any of them and if any are found raise exception which will abort the startup of the node.
This is a backwards-incompatible change for anyone who is still using old-style configuration files.
fixes#1385
Remove install.html (long since deprecated).
Also replace some obsolete references to install.html with references to quickstart.rst.
Fix some broken internal references within docs/historical/historical_known_issues.txt.
Thanks to Ravi Pinjala and Patrick McDonald.
refs #1227
All issues which are relevant to users of v1.1, v1.2, or v1.3 go in known_issues.txt. All issues which are relevant to users of v1.0 go in historical/historical_known_issues.txt.
