[FIX]Log the result from the attempt to send emails through PluginTracker with the email param, when the pref. 'Log mail in Tiki logs' was set to yes. Thanks geoff, luciash and jonnyb for feedback.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52612 b456876b-0849-0410-b77d-98878d47e9d5
[FIX]Both conditions must be met with the given logic.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52614 b456876b-0849-0410-b77d-98878d47e9d5