Changed the way that Dimensions are editable in the UI

Closes #42.
Changed the way that editing in the UI works for Taxonomy.

Closes #41.
Changed the way that Geochronology is editable in the UI

Closes #44.
Removed edit button from Geochronology
Changed the way that Lithostratigraphy is editable in the UI
Merge pull request #59 from myfossil/v0.3/edit-ui-change

Updates to the editing of Fossils UI