(issue1753) Implement PDF export of SQ Measurement data. The SQRelationExporter now consists of two reports (to avoid subreport woes). The old SQReleation PDF only takes the Page count of the Measurement attachment as argument to correctly print the page numbers. Otherwise it is unchanged. The new SQMeasurements report lists the measured data points on which the calculation was based.

# Set root logger level to DEBUG and its only appender to A1.
log4j.rootLogger=DEBUG, A1
log4j.category.org.hibernate=DEBUG

# A1 is set to be a ConsoleAppender.
log4j.appender.A1=org.apache.log4j.ConsoleAppender

# A1 uses PatternLayout.
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%d - %m%n