first pass #118 implementation for FGDC and DIF
add moved files
atom support (#118)
update docs (#118)
add harvesting database [ci skip]
Merge branch 'master' of github.com:geopython/pycsw into issue-118
update tests
Merge pull request #147 from tomkralidis/issue-118

remove typenames and queryables for outputschemas without an official profile
add xpath mappings
add doc