Metacat

Major touchup work in ISO XSL

- Fixes numerous bugs involving ISO's bizarre use of nilReasons
- Fixes numerous bugs involving differences between the ISO workbook
and the schema
- Adds support for Polygons

Tidy up ISO stylesheets. This is an set of iterative tweaks both to the
in-file formatting as well as a bit of small tweaks to how things work.

Simplify keyword thesaurus display

Showing the whole thesaurus for every keyword set is way too much info
and is impossible to display with a naive implementation.

Minor tweaks and code cleanup to ISO XSLT

- Renamed the folder once more to be more correct

Multiple changes to the ISO XSLT

- Renamed base folder from iso to iso19139
- Added a short_citation template for showing thesauri in tight places such as the keywords list
- Tweaked the geographic coverage output so the static maps render in Metacat UI

Continue work on ISO XSLTs

- We now have a template for CI_Citation
- I moved some templates into separate XSLTs
- Cleaned up overally structure/styling of translated output

Continue work on ISO XSLT

- Cleans up the root element to better match what we want in the end (looks like the EML XSLT)
- Switches a lot of calls to call-template over to apply-templates. I think this is a good idea because the ISO standards use XSD type equivalence to extend existing schemas. e.g., gmx:Anchors can show up when the gmd schema says only a gco:CharacterString should go there...

Create first basic version of ISO 19115 XSL stylesheets