Change config.h.in to avoid clobbering command line defines, if given.

In gcc, a preprocessor definition in source code always takes precedence over one given on the command line. Putting conditionals in config.h.in (and therefore in the config.h that autotools creates) prevents clobbering command line definitions.
Revert "Change config.h.in to avoid clobbering command line defines, if given."

This reverts commit 4cde6569b4b82f4af6c5d32576b1b40bef914d60.
Delete the entire prototype directory, since it's been disused for years.

This removes several troublesome third-party software licenses from the Mapready repo.
Added meta_yaw() to calculate yaw files.  Added to asf_view
Fix verion stamp file for c2v
Merge branch 'devel' of github.com:khogenso/ASF_MapReady into devel
Merge branch 'devel' of github.com:asfadmin/ASF_MapReady into devel
Merge pull request #150 from khogenso/devel

Add meta_yaw(), fix c2v compilation
Merge branch 'devel' of https://github.com/asfadmin/ASF_MapReady into devel
Install top-level Scons build files.
Remove hard-coded pathname, and allow install dir on command line.
Merge pull request #148 from ninneman/devel

Remove the disused prototype directory.
Adds a batch of SConscript files. Fix bug in SConstruct.
Merge pull request #151 from ninneman/devel

Adds a batch of SConscript files. Fix bug in SConstruct.
New tool, update_state, updates state vectors.
Handle requesting just 1 vector.
Fix spacing issues in help
Clarify behavior when using --spacing in the help.
Build update_state as part of MapReady
Merge pull request #152 from khogenso/update_state

New tool update_state; just a command-line wrapper for propagate_state()