EDay enum and inserts for all Tables + Tests
merge dev into master
added 2nd review presentation
Added resource files
Created includes for JSP-pages
Added dynamic title
Fixed merge errors
Merge branch 'master' of git@github.com:utwente-di/di20.git into dev

Conflicts:
	src/main/java/di20/rooster/Database.java
	src/main/java/di20/rooster/DatabaseTest.java
	src/main/java/di20/rooster/Employee.java
	src/main/java/di20/rooster/Staff.java
	src/main/webapp/index.jsp