Item11467: Need better documentation and handling of Perl dependencies

Priority:	CurrentState:	AppliesTo:	Component:	WaitingFor:
Normal	Closed	Engine	Documentation

Recently revised documentation no longer has the list of Perl Module dependencies, and refers installers to the lib/DEPENDENCIES file. This minimizing of dependencies leaves users with semi-functional systems. If a default core feature is dependent upon a perl module, it really ought to be clearly documented.

• Restore the Perl Modules list to System/SystemRequirements
  • omit any modules shipped with Foswiki
  • "required" should be set for any key default features like Wysiwyg, compare, email.

• The Digest::SHA1 is deprecated, but still needed by the core/lib/CPAN/lib/Cache/FileBackend.pm file. Since it's required by a CPAN module we already ship, add this to the lib/CPAN/lib directory.

• This information should also be available in the INSTALL guide we ship in the root directory. Include it as an appendix.

-- GeorgeClark - 23 Jan 2012