Squashed commit of the following:

commit 32f5885b5083c6052251a266b0ec4b6f0cd01bcc
Author: Jonas Kastberg Hinrichsen <jkas@itu.dk>
Date:   Tue Jun 11 11:54:32 2019 +0200

    Full bump

commit 3fdf913129ee6c1081e947de48e71ca6411f33da
Author: Robbert Krebbers <mail@robbertkrebbers.nl>
Date:   Tue Jun 11 11:31:22 2019 +0200

    More cleanup.

commit 46be8c0184d5a9e7de42022e389e23df99f73f6d
Author: Robbert Krebbers <mail@robbertkrebbers.nl>
Date:   Mon Jun 10 22:50:02 2019 +0200

    Some cleanup.

commit 2dc17e2cafc0b33e5ef0d2a6f6862b0938f68b18
Author: Jonas Kastberg Hinrichsen <jkas@itu.dk>
Date:   Mon Jun 10 16:33:46 2019 +0200

    WIP

commit 9427aa2ddd4fecb49b8e1c02eccc954fdb8af554
Author: Jonas Kastberg Hinrichsen <jkas@itu.dk>
Date:   Mon Jun 10 15:02:21 2019 +0200

    iRewrite Bug inspection

commit 40393f8800ab1a587f49f9ad479f5dc94b2bf2bc
Author: Jonas Kastberg Hinrichsen <jkas@itu.dk>
Date:   Mon Jun 10 14:56:08 2019 +0200

    Bumped Iris

commit 660218ca36e148b7270fd0044a2401fa553373d1
Author: Robbert Krebbers <mail@robbertkrebbers.nl>
Date:   Mon Jun 3 11:31:11 2019 +0200

    Add type.

commit 54214779390c19b1f9c8b293ac26f36efda95f4d
Author: Robbert Krebbers <mail@robbertkrebbers.nl>
Date:   Fri May 31 16:24:05 2019 +0200

    Coinductive version of stype.

commit b0fe9afb
Author: Robbert Krebbers <mail@robbertkrebbers.nl>
Date:   Fri May 31 13:19:13 2019 +0200

    Bump Iris.