create searches table and migration
search polymorphic association with lesson and question
reenable votes count helper
fix utilities spelling mistake
rake task and correcting rake load path
index existing records utility methods
change route to searches controller
search searches table with user input
after_save hook for indexing new records

(not tested)
performance optimization - only save unique records
performance optimization - add indices to fuzzy searched fields
delete old and placeholder code
extract render logic into partials
add mini profiler gem
tabbed results
add bullet gem for profiling
add counter caches to question
eager loading on searchables
validation causes bugs?
minor seed file optimization