update help to make Package Index Options' usage clearer, ref #1814
Correct paths reported so they are relative to the reported location of the package

fixes #1932
remove duplicate 'if cr == (0, 0):' in get_terminal_size
minor fixes to changelog
Raise NotImplementedError (not NotImplemented)

NotImplemented is a singleton intended for use in __eq__ methods where comparison is not possible for some reason.
merge
Optional finder variable must be validated before use
don't complain about localhost when checking security of index links

based entirely off of Guy Rozendorn's work in PR #1718
Merge pull request #1967 from r1chardj0n3s/insecure-localhost-exception

don't complain about localhost when checking security of index links
Merge pull request #1933 from r1chardj0n3s/wheel-file-list

Wheel file list
Fix pull / issue syntax
Try to order changelogs by PR number.
detect windows when running under IronPython
fixed windows test
add missing changelog entry for PR #1967
mention issue
Merge pull request #1970 from r1chardj0n3s/insecure-localhost-exception-changelog

add missing changelog entry for PR #1967
Add changelog for --no-check-certificate #1741
Remove unnecessary duplicate reference

Fixes issue #1972
Merge pull request #1974 from r1chardj0n3s/patch-1

Remove unnecessary duplicate reference