Remove -1000m slant shift.
Fix the start time being before the stop time.
Updates to the metadata.
Merge branch 'seasat' of github.com:rudigens/ASF_MapReady into seasat

Conflicts:
	src/asf_meta/meta2iso.c
Merge branch 'seasat' of https://github.com/khogenso/ASF_MapReady into seasat_devel