Move eval commands to single C-c C-v keymap

[dpsutton]

• The commits are consistent with our contribution guidelines
• You've added tests (if possible) to cover your change(s) (not applicable)
• All tests are passing (make test) tests are not passing (none at all, actually, unrelated error)
• The new code is not generating bytecode or M-x checkdoc warnings (preexisting ones)
• You've updated the changelog (if adding/changing user-visible functionality)
• You've updated the readme (if adding/changing user-visible functionality) no changes necessary
• You've updated the refcard (if you made changes to the commands listed there) no changes necessary

Thanks!

#1783

Actually no tests are passing right
In toplevel form:
cider-test.el:31:1:Error: Cannot open load file: No such file or directory, clojure-mode
Compiling /home/dan/projects/cider/cider-util.el...

In toplevel form:
cider-util.el:36:1:Error: Cannot open load file: No such file or directory, clojure-mode
Compiling /home/dan/projects/cider/cider.el...

In toplevel form:
cider.el:80:1:Error: Cannot open load file: No such file or directory, spinner
Compiling /home/dan/projects/cider/nrepl-client.el...

In toplevel form:
nrepl-client.el:75:1:Error: Cannot open load file: No such file or directory, queue
Compiling /home/dan/projects/cider/nrepl-dict.el...
cask exec buttercup -L .
cask exec: error: [Errno 2] No such file or directory
Makefile:41: recipe for target 'test' failed

Not sure what is causing this error but all or most tests are erroring on not finding queue, spinner, clojure-mode, etc.

[Malabarba]

LGTM. 👍

[bbatsov]

#1783

[dpsutton]

Fixed changelog note from @bbatsov and squashed commits