use a different verion of plexus-io for maven-jar-plugin since older versions have problems with file attributes managed by ldap [skip ci]
Update for new bytelist
Fix #1511 by choosing original encoding appropriately.

The new logic here chooses the original (format) string's encoding
when appending a US-ASCII string if the format string contains
non-ASCII characters or its encoding is not ASCII compatible.
Merge remote-tracking branch 'origin/jruby-1_7'