[NonGNU ELPA] Slime version 2.26.1

[ELPA update]

Version 2.26.1 of package Slime has just been released in NonGNU ELPA.
You can now find it in M-x package-list RET.

Slime describes itself as:
  Superior Lisp Interaction Mode for Emacs

More at https://elpa.nongnu.org/nongnu/slime.html

Recent NEWS:

* SLIME News                                -*- mode: outline; coding: utf-8 -*-
* 2.26.1 (December 2020)
** SBCL compatibility

* 2.26 (August 2020)
** Fix copying presentations

* 2.25 (June 2020)
** Core
*** slime-connect takes additional arguments for open-network-stream
** slime-asdf
*** Removed code problematic for non-SMP Lispworks
** slime-fancy
*** Now loaded by default
*** Include slime-indentation
** slime-repl
*** New option: slime-repl-history-use-mark
*** Tweaked slime-repl-inputed-output-face for dark backgrounds
** slime-selector
*** Add prefix argument for opening window in another window
** slime-package-fu
*** Handle UIOP:DEFINE-PACKAGE
** ABCL backend
Numerous additions, including
*** Better able to inspect call arguments
*** Dramatic improvements in inspecting Java objects
*** Enable goto source location to find definitions in JAR archives
*** FIND-DEFINITIONS include symbols and specials defined in Java
** Clasp backend
*** Improved source locations
*** Implemented profiling via metering.lisp
** SBCL backend
*** Discard auto-generated DEFGENERICs from find-definitions

* 2.24 (May 2019)
*** Minor improvements.

* 2.23 (December 2018)
*** Improved compatiblity with different versions of Emacs, SBCL, Clasp, 
Allegro.
*** Bug fixes

* 2.22 (July 2018)
*** Improved compatiblity with Emacs 26

* 2.21 (June 2018)
*** Improved compatiblity with Emacs 26
*** Mezzano support

* 2.20 (August 2017)
** Core
*** More secure handling of ~/.slime-secret
** SBCL backend
*** Compatiblity with the latest SBCL and older SBCL.
** ECL backend
*** Numerous enhancements

* 2.19 (February 2017)
** Core
*** Function `create-server` now accepts optional `interface` argument.
Swank will bind the PORT on this interface. By default, interface is 127.0.0.1.
This argument can be used, for example, to bind swank on IPv6 interface "::1".
** SBCL backend
*** Now swank can be bound to IPv6 interface and can work on IPv6-only machines.
*** Compatiblity with the latest SBCL

* 2.18 (May 2016)
*** Mostly bug fixes and compatibility with newer implementations

* 2.17 (February 2016)
** Contribs
*** New contrib, slime-macrostep, for more advanced in-place macroexpansion.
*** New contrib, slime-quicklisp.

* 2.16 (January 2016)
*** Auto-completion now supports package-local nicknames on SBCL and ABCL.
*** Bug fixes and updates for newer implementations.

* 2.15 (August 2015)
** Core
*** Completions are now displayed with `completion-at-point'.
The new variable `slime-completion-at-point-functions' should now be
used to customize completion.  The old variable
`slime-complete-symbol-function' still works, but it is considered
obsolete and will be removed eventually.

** SBCL backend
*** M-. can locate forms within PROGN/MACROLET/etc. Needs SBCL 1.2.15 

* 2.14 (June 2015)
** Core
*** Rationals are displayed in the echo area as floats too
*** Some of SLDB's faces now have MORE COLOR
*** Clicking with mouse-1 within inspector does things
As do mouse-6 and mouse-7. (Thanks to Attila Lendvai.)

** slime-c-p-c (Compound Prefix Completion)
*** Now takes a better guess at symbol case (issue #233)

** slime-fancy
*** slime-mdot-fu is now enabled by default

** SBCL backend
*** Now able to jump to ir1-translators, declaims and alien types
*** Various updates supporting SBCL 1.2.12

** ABCL backend
*** Fixed inspection of frame-locals in the debugger
(Thanks to Mark Evenson.)

* 2.13 (March 2015)

** Core
*** slime-cycle-connections has been deprecated
It has been replaced by slime-next-connection and
slime-prev-connection. A shortcut for the latter has been added to
slime-selector.

** slime-mdot-fu
The slime-mdot-fu contrib has been brought back to life. (Thanks to Charles
Zhang. Issues #8, #231 and #232.)

** slime-typeout-frame
The slime-typeout-frame contrib has been restored. (Issue #221.)

** SBCL backend
*** Fixed xrefs coming from C-c C-c
Issue #227.

** CMUCL, SBCL and SCL backends
*** Better support for custom readtables
Functionality that depends...
...