Isolate arity and args from successive calls to Proc#curry.

Fixes #1523.
Avoid creating singleton classes during Proc#curry logic.
Mask 1.9-only spec.
bump for version
fix the order of execution to ensure bin/*.bat files are packed
[skip ci]
Merging
No reason to keep these in exception objects as far as I can tell.

Fixes #1532.
Merge branch 'post-11' into jruby-1_7
Merge remote-tracking branch 'origin/jruby-1_7'

Conflicts:
	core/pom.xml
	docs/man/pom.xml
	docs/pom.xml
	ext/openssl/pom.xml
	ext/pom.xml
	ext/readline/pom.xml
	ext/ripper/pom.xml
	maven/gems/pom.xml
	maven/jruby-complete/pom.xml
	maven/jruby-core-complete/pom.xml
	maven/jruby-dist/pom.xml
	maven/jruby-jars/pom.xml
	maven/jruby-noasm/pom.xml
	maven/jruby-rake-plugin/pom.xml
	maven/jruby-stdlib-complete/pom.xml
	maven/jruby-stdlib/pom.xml
	maven/jruby/pom.xml
	maven/pom.xml
	pom.xml
	test/pom.xml