Converted all lowercase sql code to uppercase. The majority of the changes involved donkey's schema.
Issue: MIRTH-2895
MIRTH-2900: Deprecated the importClass method by overriding it in all JavaScript contexts. The method now calls importPackage instead, and sends an error entry to the server log.
MIRTH-2849: Added Javadocs to classes.
Added Migratable interface to alert model classes.

Added a properties map to AlertModel for future properties and updated ImportConverter3_0_0.
Issue: MIRTH-2901
MIRTH-2849: Added/modified Javadocs.