Author: Jun Pataleta
MDL-72674 core: Add indicator that feedback link opens in new window
* New pix icon i/externallink
* New lang string opensinnewwindow
* Use the external link pix icon with "Opens in new window" lang string
as its alt text and add it to the "Give feedback about this software"
link.
* Update cta template to indicate whether the link opens in new window.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=2e9e4ca1df8c0c775ec9bd75a0a8e72a97ed3236
http://github.com/moodle/moodle/commit/2e9e4ca1df8c0c775ec9bd75a0a8e72a97ed3236
+ 3.10 en [opensinnewwindow,core]