GSF.Core: Added basic security options to the Mail class (supports Gmail SMTP server).
GSF.Core: Added basic security options to the Mail class (supports Gmail SMTP server).

git-tfs-id: [https://tfs.codeplex.com/tfs/TFS07]$/gsf/Main;C97541

GridProtectionAlliance/gsf,rmc00/gsf,rmc00/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,rmc00/gsf,rmc00/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,rmc00/gsf,GridProtectionAlliance/gsf,rmc00/gsf,GridProtectionAlliance/gsf,rmc00/gsf