Enable TLS support under Ruby 1.8.x.
Enable TLS support under Ruby 1.8.x.

There needs to be a check for which version of ruby is being used
when trying to enable tls support.   Ruby 1.8 Net::SMTP does not
support the context object for enabling the TLS support, you
need to pass the OPEN::SSL::VERIFY related constant directly.

This patch checks for the version of Ruby and enables it as appropriate.

jeremyevans/mail,EdwardPantoja/mail,owenr/mail,agaridata/mail,pushrax/mail,pjskennedy/mail,EdwardPantoja/mail,jeremyevans/mail,kaineer/mail,zacholauson/mail,jeremy/mail,benmmurphy/mail,smallspark/mail,jonkgrimes/mail,wktk/mail,mikel/mail,kert-io/mail,kert-io/mail,smallspark/mail,jonkgrimes/mail,wktk/mail,pascalbetz/mail,missive/mail,pushrax/mail,agaridata/mail,pjskennedy/mail,kjg/mail,0x00evil/mail,yujinakayama/mail,schneems/mail,planio-gmbh/mail,Schniz/mail,schneems/mail,jeremy/mail,carsonreinke/mail,0x00evil/mail,zacholauson/mail,kjg/mail,carsonreinke/mail,benmmurphy/mail,kainlite/mail,schepedw/mail,schepedw/mail,kaineer/mail