Added ZeroClipboard 1.2.2 and 1.2.3

Sources:https://github.com/zeroclipboard/zeroclipboard/archive/v1.2.2.zi
p and https://github.com/zeroclipboard/zeroclipboard/archive/v1.2.3.zip

Straight file copy from archives, no other work required.
Merge pull request #2256 from petecooper/master

Added ZeroClipboard 1.2.2 and 1.2.3