[refs ndlib/planning#145] server-side work for #145
[refs ndlib/planning#145] client-side work for #145
[refs ndlib/planning#145] switching to use jquery.token-input instead of chosen
User factory generates id from random seed in order to avoid conflicting ownership in tests (Affects search tests
[refs ndlib/planning#145] adding selenium test coverage
Merge pull request #107 from ndlib/ndlib/planning#145

Ndlib/planning#145: Associating Works (Datasets, Articles, etc.) with each other