[elpa] externals/ess updated (19724bbe35 -> 2a8c385d20)

[ELPA Syncer]

elpasync pushed a change to branch externals/ess.

      from  19724bbe35 Qualify ESSR commands with namespace
       new  de7dbecf4b Make `ess-can-eval-in-background` a function
       new  a9100c1938 Inspect `bg-eval-disabled` process property
       new  47875fe1ac Disable background commands when ESSR failed to load
       new  bc81e67f92 Add `inferior-ess-current-process`
       new  da413b8bd1 Carefully check for disabled bg eval
       new  ce557f8425 Don't check for availability if bg evals are disabled
       new  190ad9d0fb Fix detection of stale background processes
       new  cbebb1f655 Merge pull request #1244 from 
emacs-ess/proc-background-eval-guard
       new  3b15d0efd9 Propagate ESSR init errors to elisp side
       new  9b5f800026 Propagate `ess-command` errors to elisp side
       new  47f86dbe09 Merge branch 'ess-command-propagate-error'
       new  2a8c385d20 Don't enable enriched `ess-command` too early


Summary of changes:
 doc/newfeat.texi         |   7 +++
 etc/ESSR.rds             | Bin 15250 -> 79396 bytes
 etc/ESSR/R/.basic.R      |  15 ++++-
 etc/ESSR/R/.load.R       |   3 +
 lisp/ess-inf.el          | 154 ++++++++++++++++++++++++++++++++---------------
 lisp/ess-julia.el        |   2 +-
 lisp/ess-r-completion.el |  92 +++++++++++++---------------
 lisp/ess-r-mode.el       |  78 ++++++++++++------------
 test/ess-test-r-utils.el |   3 +-
 test/ess-test-r.el       |  31 ++++++++++
 10 files changed, 240 insertions(+), 145 deletions(-)