version 5.1.0 using Font Awesome from unsecure CDN

[oferitz]

163dfeb#diff-0e1130f84eefdbec26836cf3da534eb4

Please consider not taking font-awesome from CDN but to serve it locally.
But if you must use CDN then please change to
https://cdn.bootcss.com/font-awesome/4.2.0/fonts/fontawesome-webfont.eot?v=4.2.0
as websites that are under https:// and depend on rc-menu will get mixed content error and the font cannot be served because the request is blocked.

[benjycui]

Yep, PR is welcomed, you can update http to https, thanks 😄

[andreysaleba]

Hey, I've added the PR with this change

[Shubhasis10]

https://www.belpahari.co.in