Bump2version

It's used only as a dev dependency in 7 crates.

Depender (with downloads and own rev deps)			Bump2version version
3.8K	2	crc32-v2	dev	^0.1.4
1.3K		openbook	dev	^0.1.3
450		rping	dev	^0.1.3
290		input-rs	dev	^0.1.4
240	1	gems	dev	^0.1.2
	1	emitter-rs	dev	^0.1.3
		ipcap	dev	^0.1.3