Add handling of "no data" value for GeoTIFFs in import/export/asf_view
Incorporated the new no data field into the normal geotiff initialization code
Merge branch 'devel' of https://github.com/asfadmin/ASF_MapReady into devel
Made fit_warp available as a library function
Add fit_warp to the list of MapReady tools
Added a clean target to fit_warp Makefile
Need the XML libs in the GUI, now.
Now the fit_warp in libasf_insar is no longer needed.
Kludgey way of making remap into a library function.
Now have the guts of remap in libasf_remap.
Now split out the lib part of remap into libasf_remap
Forgot to add the new remap main.
Libraries had to be reordered
Merge pull request #176 from khogenso/devel

Make fit_warp and remap available is library code.  Also, better "no data" in geotiffs.