Added Faraday rotation and browse images to the mix.
Merge pull request #206 from rudigens/roipac

Added Faraday rotation and browse images to the mix.
Added some print errors to missing browse images to let the user know.
Actually added the Faraday rotation values now.
Put the browse flag back and fixed some file existence checks.
Forgot to add the attributes for Faraday rotation values into the XML.
Merge pull request #207 from rudigens/roipac

Added some print errors to missing browse images to let the user know.
Some typo in a print statement.
Merge pull request #208 from rudigens/roipac

Some typo in a print statement.
Extension of metadata section for generation of ISO metadata.
Merge branch 'roipac' of https://github.com/rudigens/ASF_MapReady into roipac

Conflicts:
	src/write_hdf5_xml/write_hdf5_xml.c
Merge pull request #209 from rudigens/roipac

Fixed the browse image problem. Found an issue with incidence angle metadata. Added extent section.
Revised the write_hdf5_xml tool considerably.
- The extent section needed some revamping.
- Added baseline method and orbit type to InSAR metata.
- Renamed files_t into params_t and related variable accordingly.
- Extracted remaining time stamps for processing steps.
- Added the DEM URL and troposphere to the parameter list.
Merge pull request #210 from rudigens/roipac

Revised the write_hdf5_xml tool considerably.
Added XML encoding for strings.  Made buffers a bit larger.