GITC-1608 Fixed potential time period oddities seen in GetCapabilities
GITC-1608 Fixed potential time period oddities seen in GetCapabilities

Sort time periods from earliest to latest
Use 3 dates/times instead of 4 to determine time period
nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth