Update "ejabberd" package to version 2.1.11. Changes since 2.1.10:
- HTTP service
  - Fix ejabberd_http:get_line
  - Don't use binary:match to extract lines from binaries
  - Parse and encode https header names like native http parser does
  - Parse correctly https request split into multiple packets
  - Properly handle HEAD request in mod_http_bind (EJAB-1538)
  - New option default_host for handling requests with ambiguous Host
    (EJAB-1261)
- ODBC
  - New ODBC support for mod_announce
  - New ODBC support for mod_blocking
  - New ODBC support for mod_irc
  - New ODBC support for mod_muc
  - New ODBC support for mod_shared_roster
  - New ODBC support for mod_vcard_xupdate
  - Add ODBC exporting function for privacy table
  - Work also with some unicode strings in PgSQL (EJAB-1490)
  - Replace a single quote with double quotes in an ODBC escape
- SSL
  - Make sure that res is initialized in all cases
  - Parse correctly https request split into multiple packets (EJAB-1537)
  - Added missed tls:recv_data/2
  - Don't ignore Length parameter in tls:recv
  - Avoid quadratic behavior in reading SSL data
  - Dix http_bind webserver TLS fail on Chrome (EJAB-1530)
- Miscelanea
  - Assume we have only one CPU when an auto-detection fails (EJAB-1516)
  - Auth: Relax digest-uri handling (EJAB-1529)
  - Caps: Cache caps timestamp before the IQ-request is done
  - IRC: Use of MUC password
  - Private: misc errors cases fixes
  - Pubsub: return user affiliation for a specified node (EJAB-1294)
  - Shared Roster: Foreign items were not pushed (EJAB-1509)
  - Shared Roster LDAP: user substitution in ldap_rfilter (EJAB-1555)
  - Windows: Fix makefile rules for building DLLs

(tron)