sonatype/nexus — pull request #749 by ifedorenko (2013-02-15 18:16:45+00:00)
Title: Stable timestamp of generated js/css urls

Derive timestamp from jar file lastModified (for packaged plugins)
or actual resource file lastModified (for exploded plugins). Fall
back to current time if referenced resource file cannot be detected.

Signed-off-by: Igor Fedorenko