am b92c8a90: (-s ours) am 7e48a700: (-s ours) Use SWT to write PNG screenshot now that we moved to SWT 3.3+ (do not merge)

Merge commit 'b92c8a9055f76b5c741add7d2f5562052c5024c5' into eclair-mr2

* commit 'b92c8a9055f76b5c741add7d2f5562052c5024c5':
  Use SWT to write PNG screenshot now that we moved to SWT 3.3+ (do not merge)