Reviewed-by: alexsch, smarks

Reviewed-by: art

Reviewed-by: anthony, alexsch

Reviewed-by: alexsch

Reviewed-by: dholmes

Reviewed-by: alexp

Reviewed-by: darcy, weijun

Summary: Removed second registration of listener
Reviewed-by: peterz

Summary: Removed unnecessary castings and other warnings
Reviewed-by: malenkov

Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

Summary: The sentence about ChangeEvents generation was removed
Reviewed-by: peterz

Summary: JSlider registers as an image observer of label's icon
Reviewed-by: alexp

Summary: Removed unnecessary code like unused variables, castings, imports etc
Reviewed-by: peterz

Summary: avoid using constructors when unique values are not necessary
Reviewed-by: volk, igor, peterz