Merge pull request #29 from johnsonpham/master

change new logo and make position default for the first time to load page
Merge pull request #18 from chrisshayan/Release5

Release5
Merge pull request #31 from johnsonpham/master

fix bug position for bubble on mobile version
Merge pull request #19 from chrisshayan/Release5

Release5
Refactor UI
Merge pull request #20 from phuonghuynh/ref

Ref