Warnings when using spinning_cursor

[eirvandelden]

When we add spinning_cursor to our project and use we, get the the following on each run of our CLI tool:

/Users/me/Documents/tool/vendor/bundle/ruby/2.1.0/gems/spinning_cursor-0.3.0/lib/spinning_cursor.rb:36: warning: assigned but unused variable - abort_on_exception
/Users/me/Documents/tool/vendor/bundle/ruby/2.1.0/gems/spinning_cursor-0.3.0/lib/spinning_cursor.rb:46: warning: `&' interpreted as argument prefix
/Users/me/Documents/tool/vendor/bundle/ruby/2.1.0/gems/spinning_cursor-0.3.0/lib/spinning_cursor/parser.rb:21: warning: `&' interpreted as argument prefix
/Users/me/Documents/tool/vendor/bundle/ruby/2.1.0/gems/spinning_cursor-0.3.0/lib/spinning_cursor/stop_watch.rb:8: warning: `&' interpreted as argument prefix
/Users/me/Documents/tool/vendor/bundle/ruby/2.1.0/gems/spinning_cursor-0.3.0/lib/spinning_cursor.rb:101: warning: instance variable @spinner not initialized

[prydonius]

Hey,

I can confirm that I'm also getting these errors when executing ruby with warnings on.

Thanks for letting me know!