Merge pull request #12 from dacamp/master

BUGFIX for ssh public key fingerprints where there is a comment that does not contain "@"
use OpenSSL::BN functionality and Base64::strict_*
reverted changes to base64 usage
hopefully fix JRuby problems
whitespace shuffling to trigger Travis rebuild
change byte handling to pacify ruby 1.8.7 / Travis
renamed vars
Merge pull request #13 from arnehormann/simpler

simplify some functions
Minor cleanups
Travis: JRuby on all JDKs, Rubinius 2.1.1
Install rubysl for Rubinius
Remove old rbx from travis
Support RBX 2.1.1 and newer
Bump version to 1.6.1
Add MIT license to gemspec
Test on MRI 2.1.0-preview2
rubysl 2.1 for rbx
Test on MRI 2.1.0-rc1
RBX's rubysl version is 2.0.15
Test on Ruby 2.1.0