Update the show.html.erb for galaxies to show NA for no Citation
Fix the galaxy index.html for citations with NA
updated citations to destroy all references in galaxies single citation record - not galaxys_citations model. also updated view for Development page and added some basic logic to that page too
Merge branch 'citation-visual-fixes' of https://github.com/rocmsocm/socm into citation-visual-fixes
updated galaxys#show view to use model hash for citation refs. also updated welcome view slightly. sqlite3 is now available for development and makes it easier to use without postgres - change database.yml to use it
fixed small bug in galaxies#index with displaying NA. also fixed ul element spacing bug