added additional param for kwc_mail_redirect to set title in statistics

its easier to interpret the statistic for others with title and not link
added ownModel and recipients for Kwc/Mail/Redirect test and dont extent from another test
add second param title from Kwc_Mail_Redirect to existing row if this title is empty
Merge pull request #94 from kaufmo/3-4_mail-redirect-with-title

mail redirect with title