adding syntax config thingy to rails_helper
using contexts and before statements on posts#new tests as @Elffers recommended :)
removing spec/support/factory_girl.rb
tidying tools#create tests with context and before statements @Elffers
tidying tools#update tests to use context and before statement, adding tool factory
adding return button if checked out
fixed association bug between admin and tool
making current_user a helper method
displaying 'not available' if tool is checked out by another person