renamed test files
Changed name of HmmDbHit to DBEntry in dia
renamed :hmm_db_hit and :hmm_db_hit_pdb to :db_entry and :db_entry_pdb
renamed factories generated in spec/factories/factories.rb and fixed failing tests for them. Preparing for renaming HmmDBHit table to DBEntry
Migration for renaming table hmm_db_hits to db_entries. Had to change the model to DbEntry as well for the migration to go through.
Fixing tests, models, views, controllers, helpers, routes, file_parsers and sample_data