customer and transaction relationships
cleaned up customer and transaction relationships
add relationships for invoice and merchant
cleaned transaction test
Merge pull request #30 from dalexj/adam-branch

Adam branch
Merge pull request #31 from dalexj/herbswork

Herbswork
Merge pull request #32 from dalexj/alex

add relationships for invoice and merchant
fixed small typos
Merge pull request #33 from dalexj/alex

fixed small typos