This is an alternative to !91, which was written prior to views. Using
the view CMRA we factor the implementation into purely algebraic library
and a logic-level wrapper. The logic-level wrapper exports resources
which seal away the underlying ownership and has theorems which handle
the ownership reasoning.

Rename `mnat`/`mnat_auth` into `mono_nat`.

See merge request iris/iris!572

Remove the weaker version with the `_lb` since the stronger version is just
as easy to use in the proofmode.

- This avoids confusion between `mnat` and `max_nat`. The `m` stands for `mono`.
- With `_mono` added, the `_auth` suffix in the algebra name no longer makes
  sense, so I removed it.
- This makes the names between the logic and the algebra-level library consistent.
- I also renamed `_frag` into `_lb` in the algebra-level library so as to make it
  consistent with the logic-level library.

Furthermore make the order of lemmas consistent and make the versions for the
fractions consistent.

Remove `CopyDestruct` heuristic

See merge request iris/iris!596

add gmap_view_alloc_big

See merge request iris/iris!598

This is an alternative to !591.

wp_finish: avoid making a goal unprovable

See merge request iris/iris!593

Make the IPM documentation more useful

See merge request iris/iris!589

- Separated out the simpler invocations of tactics from their full
  forms. In the process we now document what parts of a tactic are
  optional.
- Convey what the common and rare tactics are, for example that the
  argument to `iModIntro` is rarely needed.
- Use "destruct" to talk about invoking an intro pattern, rather than
  eliminate, to stay closer to Coq terminology and avoid this potentially
  confusing PL term.
- Added an overview of the "grammar entries" relevant to many tactics
  (ipat, selpat, spat, and pm_trm). Added links to those sections
  everywhere.

Add explicit Local/Global to hints at top level

See merge request !594

Fixes new Coq master warning deprecated-hint-without-locality
(https://github.com/coq/coq/pull/13188).

link to pinned-package-versions page

See merge request iris/iris!590

This reverts merge request !591

Make iDestruct consume wands when it's supposed to

See merge request iris/iris!591

Tej Chajed authored 4 years ago and Robbert Krebbers committed 4 years ago

`iDestruct ("H" with "HP")` where "H" is persistent is supposed to
consume "H" if it isn't a forall. Due to a bug in the tactic, this
behavior was never triggered and "H" was always left alone.

make pure_exec_fill not an instance any more

See merge request iris/iris!588

bupd, fupd: add idempotence lemmas

See merge request iris/iris!592