Changed cell_source list: -primary, +freshly isolated, +cultured
Changed sort order for cell_types, and chnged unique to include cell_type, cell_subtype and species to distinguish: primary human hepatocyte from stem cell derived human hepatocyte, for example
Changed barcode to barcode/Lot#, and changed order in list display.
Modified the layout of the change Cell_samples interface.
Merge pull request #11 from UPDDI/Issue-2

Merge Fixes for Issue #2