Resolution for most of Issue #28:
Resolution for most of Issue #28:

* Fixed list of supported operating systems (Android has no known IPP Everywhere support)
* Fixed all URLs to use https: scheme
* Shortened the list of 'Files' at the bottom to point to /ippeveselcert/index.html and commented out most of the rest since it is redundant with the information in /ippeveselfcert/index.html
* Changed Bonjour to be DNS-SD
* Made note that JPEG JFIF is now only required for color printers

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