added Unittests for additional properties
added dependecy for jasper-fonts artifact (otherwise used font is not available on my mac...)
added other missing (?) dependencies
Handlding additionalProperties
rework after review
Formatted the code
Formatted the code
Updated the docs
Merge branch 'pr/5'

Conflicts:
	src/test/java/com/alexnederlof/jasperreport/JasperReportTest.java

Closes #5