Take file's time steps when "interpolate" option is uncheked and improve timeline scrolling
Merge pull request #67 from Ptizef/master

 Take file's time steps when "interpolate" option is uncheked and improve timeline scrolling
Improve grib data panel (Add unit symbols and use all space available for data)
Merge pull request #68 from Ptizef/master

Improve grib data panel ( Add unit symbols and use all available space for data )