Adding an entry for Etc/UTC acceptable ?

[sebastienvermeille]

Hi,
in the current project I am working in we would like to have the option to choose "Etc/UTC" in the list. As this is something supported by momentjs I think we should considere this.

Thank you in advance for your feedback

[sebastienvermeille]

I created a pull request here with the change:
#23

[sebastienvermeille]

hello ?