Fix #66021 (Blank line inside empty array/object)

Changed json_encode() so that when the JSON_PRETTY_PRINT option is specified,
the pair of linefeeds immediately after an opening bracket and before the
corresponding closing bracket is omitted when the array or object contains no
elements or accessible properties (and hence would have a blank line between
the brackets).
Fixed bug 64604
Fix #66562: Consistency bug where curl_multi_getcontent behaves different from curl_exec

curl_exec returns an empty string when data is received from a domain that returns zero content. curl_multi_getcontent
returned null. Now it returns an empty string fixing the incosistency
Fix bug #66482, replace wrong item name 'priority' with 'process.priority' in php-fpm.conf
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix bug #66482, replace wrong item name 'priority' with 'process.priority' in php-fpm.conf
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fix bug #66482, replace wrong item name 'priority' with 'process.priority' in php-fpm.conf
Merge branch 'PHP-5.6'

* PHP-5.6:
  Fix bug #66482, replace wrong item name 'priority' with 'process.priority' in php-fpm.conf
Fix #66562: Consistency bug where curl_multi_getcontent behaves different from curl_exec

curl_exec returns an empty string when data is received from a domain that returns zero content. curl_multi_getcontent
returned null. Now it returns an empty string fixing the incosistency
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix #66562: Consistency bug where curl_multi_getcontent behaves different from curl_exec
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fix #66562: Consistency bug where curl_multi_getcontent behaves different from curl_exec
Merge branch 'PHP-5.6'

* PHP-5.6:
  Fix #66562: Consistency bug where curl_multi_getcontent behaves different from curl_exec
Merge branch 'pull-request/578'

* pull-request/578:
  Fix #66562: Consistency bug where curl_multi_getcontent behaves different from curl_exec
Fixed bug #64604
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fixed bug #64604
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fixed bug #64604
Merge branch 'PHP-5.6'

* PHP-5.6:
  Fixed bug #64604
Merge branch 'pull-request/533'

* pull-request/533:
  Fixed bug 64604
Merge branch 'pull-request/518' into PHP-5.4

* pull-request/518:
  Fix #66021 (Blank line inside empty array/object)
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix #66021 (Blank line inside empty array/object)
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fix #66021 (Blank line inside empty array/object)