reformated specs in rspec for 04 hashes symbols fixes #1
Merge pull request #13 from lewagon/minitest_to_rspec

reformated specs in rspec for 04 hashes symbols fixes #1
Fix specs again
fix spec
Fix spec
Forgot 2 must minitest syntax
Fix to_be_nil
First optional exercise for active record basics day
Add second exercise with dirty database
Need to set primary key as well
Reading material
Markdown links
Merge branch 'master' of github.com:lewagon/fullstack-challenges

Conflicts:
	01-Ruby/04-Hash-Symbols/01-Modeling-with-Hash/lib/mc_donald.rb
	01-Ruby/04-Hash-Symbols/03-Argument-order-dependency/lib/refrain.rb
	01-Ruby/04-Hash-Symbols/04-Array-to-hash/lib/array_to_hash.rb