Do not blow away checked out sources during clean.
This makes incremental development easier, especially in the kernel.
Revert "Do not blow away checked out sources during clean."

This reverts commit 06c39af0a85c60221ae3ba8b36b28015360e2272.
Use direct unix pipe in replication

Python was being CPU bound managing all the data pipe by itself.

Ticket:	#4620
Add aria-label to users group selection links

Ticket:	#4598
Use normal text input widget for replication port

Number widget would add commas.

Ticket:	#4608
Encode alert system messages in UTF-8

Ticket:	#4630
Prefix group names with domain name if not using default domain