WorkEffortModel and WorkpackageAllocationModel implemented
PlannedValueModel implemented and some fixes
HolidaysCalendarModel implemented and some fixes
Checkstyle changes
Checkstyle changes
Formatting
Merge branch 'wp2.2.2-db-interface-impl' into wp2.2.2-db-interface-impl-hm

Conflicts:
	src/test/java/dbaccess/models/mysql/MySQLModelsTestSuite.java
added mysql-connector to compile time dependencies