added notes field to equipment_objects table
updated migration to increase notes text limit
updated migration to prevent null notes
set notes to empty string in seeds.rb / factory so they don't fail

also added a note to EquipmentObjectController#create to remember to define
the creation note
fixed whitespace in EquipmentObjectController
defined initial note with creation of object
added notes to equipment object show view
added notes to deactivate method (BROKEN)
added notes to activate method (BROKEN)
fixed activation / deactivation notes assignment
fix issue where procedures hash was nil if none checked
added md_link method to user model for markdown links
added markdown links for activate and deactivate notes
added markdown links for users in reservations notes
added equipment object notes for reservation checkin/checkout
added markdown link method of reservations
simplified markdown link method for users
added notes functionality when switching equipment objects between reservations
fixed missing whitespace in equipment object checkin/checkout notes
added notes for next time