0.7.5

What's Changed

• Optimize write_all_bytes using vec::IntoIter and add unit tests for it (#14)
• Accepts Writer: ?Sized in write_vectored_all (#15)
• Optimize init_maybeuninit_io_slices_mut: Avoid dup monormophization (#16)

Full Changelog: 0.7.4...0.7.5