Due to the incompatibility of fonts and encoding in some environments,
some browsers could not render the Copy Button correctly.
This change uses instead a clipboard image to replace the unstable
Unicode Character for the Copy Button.
The image is open sourced and is discovered at:
http://uxrepo.com/icon/clipboard-by-ionicons
Also, license for the use of the image is included.
Change-Id: Ie7d55e8cde40df445d32e6b8fcab91cf8a0c05b7
b384139657