[elpa] externals/xr updated (b5ae891 -> dcf5240)

[Mattias Engdegård]

mattiase pushed a change to branch externals/xr.

      from  b5ae891   Increment version to 1.15
       new  0fb29c8   Update copyright year to 2020
       new  9a8bf08   Update copyright year to 2020
       new  c88fb0e   Use text quoting for all messages
       new  3af4048   Suppress false positives in repetition subsumption check 
(bug #2)
       new  9d9debd   Remove package description in xr.el
       new  e82efe8   Improved character class set relations
       new  1932e3d   Avoid ambiguous regexp (relint/xr complaint)
       new  d7a6480   Translate [^\n] into nonl
       new  dcf5240   Increment version to 1.16


Summary of changes:
 xr-test.el | 423 +++++++++++++++++++++++++++++++++++--------------------
 xr.el      | 464 ++++++++++++++++++++++++++++++++++++++++++-------------------
 2 files changed, 599 insertions(+), 288 deletions(-)