fix +x bits in the bin files
use local jruby install for tesla plugin
use older ruby DSL for pom.rb
add config for ITs in root pom
obsolete [skip ci]
added IT for source distribution
test for right rdoc version
Merge branch 'master' of jruby.org:jruby

Conflicts:
	maven/jruby-dist/pom.rb
added IT for source distribution