Merge pull request #117 from jkreft-usgs/master

visual tweaks and fixes
Merge pull request #118 from jkreft-usgs/master

fix unit test
Merge pull request #119 from jkreft-usgs/master

fix brittle call
Merge pull request #120 from jkreft-usgs/master

hard-coded urls
thumbnail fix
Merge branch 'master' of github.com:USGS-CIDA/PubsWarehouse_UI
margin fix
padding fix
Merge pull request #122 from jkreft-usgs/master

global vars?
Merge pull request #121 from mwernimont/master

thumbnail fix
Merge remote-tracking branch 'upstream/master'