Payment's unapplied_amount exchange_rate are not required attrs so use to_xml_big_decimal so they are not included by default. Existing spec suite covers this change.
Merge pull request #96 from minimul/payment-big-dec

Payment's unapplied_amount exchange_rate are not required attrs so use t...
Capitalization errors in Department and Class methods.
Merge pull request #97 from markrickert/resource-typos

Capitalization errors in Department and Class methods.
Simplify service CRUD. The code for update and create was identical.
Merge pull request #98 from markrickert/service-crud

Simplify service CRUD. The code for update and create was identical.