Merge branch 'develop' of github.com:ryota-ka/papagamba into develop
Generate PIN model
Implement generate_pin method in PIN model
Implement feature of generating new PIN
Implement feature of matching PIN
Generate Couple model
Implement couple-generating feature
Add unique index to pins table
Validate uniqueness of pin for specific device ID
Counfigure routing to papas#match_pin
Modify method of saving couple in papas#match_pin
Merge pull request #2 from ryota-ka/feature/2

ペアリング用PINの生成