Move terrain_correction section into metadata section
Merge pull request #274 from khogenso/devel

Move terrain_correction section into metadata section
Remove old unneeded platform test that called a long-deprecated header.
Merge pull request #275 from asfadmin/jsn

Remove old unneeded platform test that called a long-deprecated header.
Merge pull request #70 from asfadmin/devel

Pull latest changes
Merge pull request #71 from rudigens/master

Pull latest changes