Initial grib enhancements, faster rendering and interpolation  between files
Updated to
Merge remote branch 'upstream/master' into grib_enhancements
Initial commit with fully functioning  enhanced grib plugin
windows build corrections
Undo pluginmanager change from before (oops) fix arrow bug, and update unit conversions
Various bug fixes, and rendering enhancements
improve number rendering
Fixed bug in isoline and consolidate code, work around gtk for window position auto center
ready to render not needed, simplify logic
Merge remote branch 'upstream/master' into grib_enhancements
Merge remote branch 'upstream/master' into grib_enhancements
Update grib plugin to be able to communicate with other plugins
routing corrections, and current direction correction
Merge remote-tracking branch 'upstreamsean/grib_enhancements' into GRIB_FROM_SEANDEPAGNIER