Create `helm-descbinds-mode' to handle (un)installation.

Remapping `describe-bindings' allows `helm-descbinds' to avoid having to save
and restore the original function cell of `describe-bindings' and leaves that
function intact.
Merge minor mode key installation.

Closes  #3.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
Add a readme.

Closes issue #2.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
Fix actions.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
Disable helm-descbinds within helm.

Addresses issue #4.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>