refactored retire procedure action, added tests, fixed bug in manageProcedure page (error handling)
fixed bug in OperationTheaterService#retireProcedure; added test
refactored Surgery and Procedure validators - added tests
commented because all tests are failing and code hasn'tbeen changed - maybe related to dependency quick fix - rest not used at the moment
created new entity for scheduling related data and refactored existing solution - added new fragment action to adjust scheduling
restored config file (initial commented required modules to solve jodatime dependency but didn't work out) ;removed repository from pom because dependencies are in maven central
refactored available times dialog, created new dialog to adjust scheduling of a surgery