utility.cpp

Added timezone info to dates string used by smartd email Directive.  Added additional environment variable SMART_TFIRSTEPOCH containing integer unix epoch of SMARTD_TFIFST.  Removed newline from
environment variable SMART_TFIRST.


git-svn-id: https://smartmontools.svn.sourceforge.net/svnroot/smartmontools/trunk@485 4ea69e1a-61f1-4043-bf83-b5c94c648137