• use out-of-line links to avoid a warning from rst2html --verbose (fixes#1704)
• reflow to 77 fill-column and prepend utf-8 BOM (fixes#1703)
• recommend Python 2.7 (fixes#1702)
• remove link to wiki:AdvancedInstall (fixes#1701)
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