Print running environments in standaloneify.rb

example:

    % ruby standaloneify.rb -d YourApp.app ./build/Release/YourApp.app
    standaloneifying Ruby Version: 1.8.7
    standaloneifying RubyCocoa Version: 1.1.0
    standaloneifying RubyCocoa path: .../YourApp.app/Contents/Frameworks/RubyCocoa.framework
    standaloneifying Gem::VERSION: 2.3.0
    Found gem sqlite3-ruby
       :

    % ruby standaloneify.rb -d YourApp.app ./build/Release/YourApp.app
       :
    # failed
    >> command: YourApp.app/Contents/MacOS/CasualConc standaloneify.rb --standaloneify
    >> dyld: loaded: YourApp.app/Contents/MacOS/../Frameworks/RubyCocoa.framework/Versions/A/RubyCocoa
    >> dyld: loaded: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/libruby.1.dylib
    >> dyld: loaded: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin13.0/strscan.bundle
    Error: Couldn't read dependency list

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2564 f4f36d40-9719-0410-9868-dde021a23eda
Fix errors with rubygems 1.3, 2.1 or later

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2565 f4f36d40-9719-0410-9868-dde021a23eda