Add known issues to sections via new "issues" extension.
Add known issues. Fix build warnings.
Fix 2585 and clean up warning in contributing.rst
Merge pull request #2526 from metalivedev/2074-AddKnownIssues

Add Known Issue
Return “err” instead of “nil” when MkdirAll() fails when binding a volume
Merge pull request #2610 from stapelberg/patch-1

Return “err” instead of “nil” when MkdirAll() fails when binding a volume
Removes duplicate changelog entry
setup network when reconnecting to ghost container

Re-adding the line to setup the network when reconnecting to a ghost
container.  It was inadvertently removed by commit
31638ab2ad2a5380d447780f05f7aa078c9421f5.
Merge pull request #2611 from seancron/changelog-edit

Removes duplicate changelog entry
Fix 2585, rebase to master
Merge pull request #2615 from jpoimboe/ghost-networking-fix

setup network when reconnecting to ghost container
Merge pull request #2590 from metalivedev/2585-addphplib

Fix 2585 and clean up warning in contributing.rst