Merge branch 'PHP-5.5'

* PHP-5.5:
  Harden array_column_basic.phpt against resource renumbering.
Allow array_column() to take -1 as a valid value in third param

Also do some cleanup and simplification to make this code more
readable in the long term.
Merge branch 'PHP-5.5'

* PHP-5.5:
  Allow array_column() to take -1 as a valid value in third param
array_column() - Use entire subject array when NULL passed for second param.

This starts to look like array_values(), except that you can reindex the arrays
using the third parameter.
Merge branch 'PHP-5.5'

* PHP-5.5:
  array_column() - Use entire subject array when NULL passed for second param.
(re)allow WBMP detection with system libgd
provide getbmi and skipheader not exported functions in gd_compat.
enable WebP with system libgd when available
Merge branch 'PHP-5.5'

* PHP-5.5:
  enable WebP with system libgd when available
  (re)allow WBMP detection with system libgd provide getbmi and skipheader not exported functions in gd_compat.
fix copy/paste in error message
Merge branch 'PHP-5.5'

* PHP-5.5:
  fix copy/paste in error message
Fixed incorrect check. SEND_REF may be executed before DO_FCALL when EX(function_state).function is not yet set to the calling function.
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  Fixed incorrect check. SEND_REF may be executed before DO_FCALL when EX(function_state).function is not yet set to the calling function.

Conflicts:
	Zend/zend_vm_def.h
	Zend/zend_vm_execute.h
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fixed incorrect check. SEND_REF may be executed before DO_FCALL when EX(function_state).function is not yet set to the calling function.

Conflicts:
	Zend/zend_vm_def.h
	Zend/zend_vm_execute.h
Merge branch 'PHP-5.5'

* PHP-5.5:
  Fixed incorrect check. SEND_REF may be executed before DO_FCALL when EX(function_state).function is not yet set to the calling function.
Remove curl wrappers
Merge branch 'PHP-5.5'

* PHP-5.5:
  Remove curl wrappers
Fix bug #64458 (dns_get_record result with string of length -1)
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  Fix bug #64458 (dns_get_record result with string of length -1)
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix bug #64458 (dns_get_record result with string of length -1)
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  Fix bug #64458 (dns_get_record result with string of length -1)