[elpa] externals/exwm updated (f4aa838 -> 87db8b4)

[Chris Feng]

ch11ng pushed a change to branch externals/exwm.

      from  f4aa838   Fix a compatibility issue with Emacs 24
       new  fbdcd42   Add support for various key processing variables
       new  87db8b4   Preserve keyboard grab state after quitting fullscreen 
mode


Summary of changes:
 exwm-input.el  | 45 ++++++++++++++++++++++++++++++++-------------
 exwm-layout.el |  7 ++++---
 2 files changed, 36 insertions(+), 16 deletions(-)