gradle: update file headers

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: update some comments

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: automatically add java tasks to projects that applied java plugin

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: move findbugs placeholders into the findbugs template itself

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: improve SVGs

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: rework the clean tasks

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: minor typo fixes

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: adjust to new bnd template

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: improve index template

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: adjust some more headers

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: scan for cnf in the settings.gradle buildscript

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: update SVGs

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: fix overriding the log levels

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: determine build dependencies in settings.gradle (earlier)

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: only support *.url properties for build dependencies

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: move cnf/build.gradle.properties to gradle.properties

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: fix the build dependencies cache directory

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: have the bnd jar in gradle.properties, like the bndtools template

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: use bnd workspace directly from bnd

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
gradle: load bnd workspace as early as possible

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>