database setup
added column names to DBUser
ScheduleGenerator created, time-estimates added to the module class, and UserModuleSchedule class for hibernate created
test-class added, testing not implemented
some comments added
models ready for persistence
added getter and setter for user and module in UserHasModule
Merge branch 'database' of github.com:tkolsen/myplanner into scheduler
test of schedulegenerator implemented
scheduler updated to not add modules without items to the generated schedule
small code comment updates
merging scheduler into master