Reviewed-by: ant, serb

Reviewed-by: azvegint, bae

Summary: updated files with 2011, 2012 and 2013 years according to the file's last updated date
Reviewed-by: tbell, lancea, chegar

Reviewed-by: art, skoivu

Reviewed-by: anthony

Reviewed-by: art

Reviewed-by: darcy, weijun

Summary: Access to interface's fiels via their name rather then implementation
Reviewed-by: volk, son

Summary: Now only XClipboard know about XSelection, and XSelection knows nothing about XClipboard.
Reviewed-by: uta, denis