Add clipboard button for project clone panel

Closes #3585 

Project:

![Screen_Shot_2015-11-24_at_7.34.04_PM](/uploads/8bf73a2816f2525896023c36aea402bc/Screen_Shot_2015-11-24_at_7.34.04_PM.png)

Wiki:

![Screen_Shot_2015-11-24_at_7.34.43_PM](/uploads/ddf400a1c979a1d8b535a34877cd6163/Screen_Shot_2015-11-24_at_7.34.43_PM.png)


See merge request !1896