unvendor sshkey gem

use the actual maintained gem rather than our vendored
copy

MS-1700

Author: David Maloney

Gemfile.lock

@@ -38,6 +38,7 @@ PATH
       rubyntlm
       rubyzip
       sqlite3
+      sshkey
       tzinfo
       tzinfo-data
 
@@ -254,6 +255,7 @@ GEM
     simplecov-html (0.10.0)
     slop (3.6.0)
     sqlite3 (1.3.11)
+    sshkey (1.8.0)
     thor (0.19.1)
     thread_safe (0.3.5)
     timecop (0.8.1)

lib/sshkey.rb

@@ -98,6 +98,8 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'patch_finder'
   # TimeZone info
   spec.add_runtime_dependency 'tzinfo-data'
+  # Gem for dealing with SSHKeys
+  spec.add_runtime_dependency 'sshkey'
 
   #
   # REX Libraries