docs: Update makefiles to current Sphinx version
docs: Remove references to django-compressor
install -d works on vcs links fix #798 fix #1060
Merge pull request #1627 from techtonik/develop

Update sphinx-generated doc build files
Revert "Merge pull request #1519 from dstufft/remove-dependency-links"

This reverts commit da02f073dabdc9e72733847aa1727ec19869109d, reversing
changes made to 2ad8888901c041b8f9aacebb3a16d55bf631e867.

Conflicts:
	CHANGES.txt
	pip/commands/freeze.py
	pip/commands/list.py
	pip/commands/wheel.py
	pip/index.py
	pip/req/req_set.py
	pip/vcs/subversion.py
InstallRequirement.url should preserve the initial value for from_line requirements
a functional test for non-editable vcs installs
pep8 fixes
add missing vcs prefixes
Merge pull request #1955 from dstufft/revert-dep-links-removal

Revert "Merge pull request #1519 from dstufft/remove-dependency-links"
Merge pull request #1926 from jschneier/develop

install -d works on vcs links fix #798 fix #1060
Merge pull request #1956 from qwcode/issue_1952

preserve the full vcs url when using `InstallRequirement.from_line`
Upgrade setuptools to 5.4.2
Merge pull request #1963 from dstufft/upgrade-setuptools

Upgrade setuptools to 5.4.2
Alter the use of the Link objects in PackageFinder to store the version and package name, and
remove the use of the (version, link, version) tuple.

Also fixes bug I noticed in pip/commands/list.py where an uninitialised variable could have
been used.
revert
Merge branch 'link-tuple-removal' of github.com:r1chardj0n3s/pip into link-tuple-removal