test: added test of quick start tutorial commands

Rakefile

bin/leap

lib/leap_cli/bootstrap.rb

lib/leap_cli/core_ext/hash.rb

lib/leap_cli/leapfile.rb

lib/leap_cli/log.rb

lib/leap_cli/path.rb

test/test_helper.rb

test/unit/command_line_test.rb

test/unit/config_object_list_test.rb

test/unit/config_object_test.rb

test/unit/quick_start_test.rb

test/unit/test_helper.rb