D1232: rebase: add the --inmemory option flag; assign a wctx object for the rebase

[durin42 (Augie Fackler)]

durin42 added a comment.


  I've gone through this series and landed some of the easy stuff. Let's get the comments on this one addressed and rebase the rest and see if we can get it in before everyone goes on Christmas vacations?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D1232

To: phillco, #hg-reviewers, dlax
Cc: durin42, dlax, mercurial-devel