Modify ConfigFileLoaders so that the file can be either in the configuration directory or in the working directory.
Change jasper reports subreport generation to not use multiple threads.
Write a test where the report contains a relative reference to an image in same directory as jrxml file.
Merge branch 'jasper-report-use-our-file-loader' into development

Conflicts:
	core/src/main/java/org/mapfish/print/output/Values.java