A major merge from branch 'work':
Everything except the median filter has been incorporated into
the master branch
on my way to make major modifications to sdaacgmlib and sd libraries ...
merged to the map2d environment
overlay_map_coast refers to !map2d.time now
sd_map_set and sd_time moved to the map2d environment
overlay_map_sdfov refers to !map2d.time
overlay_map_precal_sdfov refers to !map2d.time, too
these have immigrated to map2d environment
fixed a bug of keyword_set(glonc)
supporting "coord" keyword
removed ssh commands
imported the cribsheet for IUGONET workshop
imported the cribsheet for IUGONET workshop
Merge branch 'iugws_201408' of githubspedas-j:spedas-j/erg_sd_tool into iugws_201408

Conflicts:
	iugonet_ws_advanced_2_crib.pro
repaired inappropriate characters in the cribsheet
minor changes for the cribsheet of IUGONET workshop
replaced some sd_time by map2d_time
removed sd_local.pro and sd_ssh.pro (and copied a new repository, sd_stel)
Merge branch 'iugws_201408'
removed the cribsheet for IUGONET workshop in Summer, 2014 from master branch