[bp/r51266][FIX] Mail Queue in Multitiki installations. Add mail-queue:send command (to be called from console.php).

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@51267 b456876b-0849-0410-b77d-98878d47e9d5
[bp/r51269][FIX]Missing check for SMTP selected as the mailer option

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@51271 b456876b-0849-0410-b77d-98878d47e9d5
[bp/r51270][FIX]Missing global prefs (for the check to log action or not)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@51272 b456876b-0849-0410-b77d-98878d47e9d5
[bp/r51273][FIX] Mail Queue. Log mail in Tiki Logs if necessary.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@51274 b456876b-0849-0410-b77d-98878d47e9d5
[bp/r51276][FIX] Mail Queue. Remove sendmail.php. It is superseded by console.php mail-queue:send

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@51277 b456876b-0849-0410-b77d-98878d47e9d5