Restored the License and Distribution terms to the KNB About page

This text seemed to have gotten lost in a refactoring, and was present on the default theme but not on the KNB theme.
Merge branch 'master' of https://code.nceas.ucsb.edu/git/nceas-staff/datadepot
Merge branch 'master' of https://code.nceas.ucsb.edu/git/nceas-staff/datadepot.git