Change how the timezone name is found so that it can correctly print depending on whether it is daylight savings time or not.
Change how the timezone name is found so that it can correctly print depending on whether it is daylight savings time or not.

git-svn-id: acf0ef94bfce630b1a882387fc03ab8593ec6522@231 150532fb-1d5b-0410-a8ab-efec50f980d4

Unidata/MetPy,ahill818/MetPy,ShawnMurd/MetPy,dopplershift/MetPy,deeplycloudy/MetPy,ahaberlie/MetPy,Unidata/MetPy,ahaberlie/MetPy,jrleeman/MetPy,dopplershift/MetPy,jrleeman/MetPy