simplify category.xml, add site template html, and hook it all up from the pom (TEIIDDES-1747)
TEIIDDES-1747 fix NPE, indents, and add workaround for creation of site_assembly.zip
Merge pull request #175 from nickboldt/TEIIDDES-1747_2

simplify category.xml, add site template html, and hook it all up from t...