[maven-release-plugin] prepare for next development iteration
Shorter constant name.
Add gitattributes.
Configure checkstyle.
Add list all files.
Make encoding optional.
Try to fix xheckstyle with multi modules.
Add more logging and robusteness to file service.
Add exe and bin.
Fix javadoc errors.
Fix javadoc link.
Add unchecked lintin as compiler argument.
Configure jacoco execution.
Fix unchecked warnings, add javadoc and remove obsolete format package.
Add jacoco plugin to build of core and model module.
Fixing jacoco coverage report.
Add log4j configuration for tests to all modules.
Add hint for argline.
Add link to info why using build tools module.
Move registry classes in own package.