removing java configliere stuff

These things are no longer used in release_6.1.
modernizing configliere gemspec
adding rpsec and rake as Gemfile test dependencies
Merge pull request #1 from joshbronson/master

removing java configliere stuff
version 0.4.22
Change file open in read method to use block to ensure closure.
Merge pull request #2 from gordonjb/file_open_block

Change file open in read method to use block to ensure file closure.
Bumping version to 0.4.23
Pinning configlieri 0.4.23
Merge remote-tracking branch 'upstream/0.4' into 0.4-rc