[elpa] externals/setup updated (ac8da6a -> 56668c4)

[ELPA Syncer]

elpasync pushed a change to branch externals/setup.

      from  ac8da6a   Revert the indentation spec change for `setup-define'
       new  616ff73   Add :bind-into macro
       new  a73bf19   Rewrite setup-make-setter to return a macro function
       new  0f0626e   Add :ensure key to setup-define
       new  56668c4   Explicitly invite contributions to the wiki


Summary of changes:
 setup.el | 187 +++++++++++++++++++++++++++++++++++----------------------------
 1 file changed, 105 insertions(+), 82 deletions(-)