#3: draft of scheduling service
#3 new ddl
#6 Info for contributors, IntelliJ
#3 first dirty version of OrderSchedulerService.makeScheduleForToday
#3 simplification of not important elements
#3 refactored version: custom collections
#3 refactored version: small enhancements
#3 refactored version: business rules with groovy
Merge branch 'issue-3'

Conflicts:
	README.md
#4 simplification and small fixes
Merge branch 'master' into issue-4

Conflicts:
	clean-javaee-domain/src/main/java/orderprocessing/scheduling/OrderSchedulerService.java
#4 not testable, dirty JSF controller
#4 testable and clean JSF controller