iOS Conf SG - logo proposal 2nd iteration

2nd iteration of Logo proposal for iOS Conf SG 2017 http://iosconf.sg/

Notes:
- Trying out orange to match the current theme
- It's a different kuih lapis this time, with orange, yellow, brown combination. For reference: https://epicureasia.com/img/articles/best-kueh-lapis.jpg (probably originated from Indonesia?)