Update met (stations) metadata XML

The following changes were performed in the metadata

-Workaround so abstract is visible in Metacat (remove "")
-Update revision for new harvest & harvestlist
-Make "" 2013 (was 2006) except for temporary stations, etc.
-Fix certain ""s. I.e,
--- DATASET_CODE x DATASET CODE
---swap attributeName by attributeLabel when natural language
---air temperature comments x AIRT_COMMENTS, etc

it would be nice to make the STMML units better, remove the FLINE dataTable groups, and more importantly, include the "task lists", etc.

Status: 

Priority: 

High