implement downloading a regular URL

[mwilliammyers]

Ref. lib/reel.rb:45

    # TODO implement downloading a regular URL
    puts @args
    if @args['bundle']
      prefix = reel_config_home
…

(automatically generated by Github-Todos)

[mwilliammyers]

Ref. lib/reel.rb:38

# TODO: implement downloading a regular URL
# TODO: add fish, zsh, and bash support (link and/or source files)
# FIXME: fish loading does not seem to be working

[mwilliammyers]

Downloads git clone URL now by default