Combine ways should merge small gaps

[pangoSE]

I suggest we fix "c" combine. Small gaps are typical in MapWithAI and I suggest we notify the user (in bottom left corner) when small gaps where merged during combine.

[GerdP]

Please clarify. The default action for hotkey CTRL+C is "Edit: Copy" (at least on Windows systems). Default hotkey for "Combine ways" is just "C" and this doesn't combine unconnected ways. Do you use a plugin which behaves different or do want the standard "Combine ways" action to work different? Something like a combination of "Merge nodes" and "Combine ways"?