Upgraded Mac Safari 6.1.5 --> 6.1.6
Upgraded Mac Safari 6.1.5 --> 6.1.6

kyroskoh/lets_code_javascript,halcwb/lets_code_javascript,halcwb/lets_code_javascript,kyroskoh/lets_code_javascript,halcwb/lets_code_javascript,kyroskoh/lets_code_javascript