[elpa] externals/ement updated (4a25cc0991 -> 63254f4ad6)

[ELPA Syncer]

elpasync pushed a change to branch externals/ement.

      from  4a25cc0991 Merge: (ement-room--insert-sender-headers) Refactor/fix
       new  eabb725767 Cache visibility data concisely
       new  2764c104ef Merge: Cache room-list visibility concisely
       new  63254f4ad6 Docs: Update changelog


Summary of changes:
 README.org         |  1 +
 ement-room-list.el | 25 ++++++++++++++++++++++++-
 ement.el           |  2 +-
 3 files changed, 26 insertions(+), 2 deletions(-)