From: Ralf Jung <post@ralfj.de>
Date: Sat, 18 Jul 2015 14:42:15 +0000 (+0200)
Subject: split part 11 into two, and explain interior mutability and Cell and RefCell in the... 
X-Git-Url: https://git.ralfj.de/rust-101.git/commitdiff_plain/188b1ec1b8528e2326791feccc8077e15bd60182?hp=188b1ec1b8528e2326791feccc8077e15bd60182

split part 11 into two, and explain interior mutability and Cell and RefCell in the new part 12
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