[Monica] Fix various SonarQube issues (mostly unused imports).
Merge remote-tracking branch 'origin/master'

Conflicts:
	taxcalculator/taxcalculator-batch/src/main/java/be/cegeka/batchers/taxcalculator/batch/EmployeeJobConfig.java
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
[Monica, Ron]
PDFSender uses Resources instead of File
Don't *really* send emails
Use rounding when calculating the tax
Merge remote-tracking branch 'origin/master'

Conflicts:
	taxcalculator/taxcalculator-batch/src/test/java/be/cegeka/batchers/taxcalculator/batch/SendPaycheckProcessorTest.java