Remove administrationInstructions field from DrugOrder

TODOs:

• Remove the changeset with id below which adds administration_instructions to drug_order table

  20131211-TRUNK-4130

• Remove the administrationInstruction field from DrugOrder.java
• Remove mapping for the field from the Order.hbm file.
• Update any test data not to have the column and ensure all tests pass after all the changes

Extra Credit:

• Update DrugOrderSubclassHandler1_10.java in webservices.rest module to remove the field
• Ensure that all unit tests still pass

• (Link the commit for the web services module to RESTWS-429)