fixed some admin namespace paths in admin/views, also deleted the sar_si_join table. NOw figure out how to save si before sar so I get the si_id
moved spectra_files method from admin/sar controller to mzidfile model
mzid_files has_many spectrum_identifications. and spectrum_identifications has_many s_a_r_s. added mzid_file_id to spectrum_identifications
added has_many si_s to mzid_file, changed mzid_files view/index accordingly, commented out sar link in layout. Also added the migration file to add mzid_file_id to spectrum_identifications
run migration to remove mzid_file_id from spectra_acquisition_runs
adapted to rails 4 syntax in associations in models, also rails4 syntax in find_or_create_by. Also changed varchar to text in column value in  pdh
merged local and origin dev branches
adapting find_or_create_by syntax to rails 4 in mzid_2_db.rb
changed mass_delta data type to string (varchar(255)) in searched_modifications
adapted to rails4 syntax  in models