Return array of meta values on show_form if multiple is set to true
Merge branch 'master' into custom_multiple_bugfix
Merge branch 'trunk' into custom_multiple_bugfix

Conflicts:
	init.php
Moved "return multiple meta" fix to set_field_defaults
Merge pull request #481 from senicar/custom_multiple_bugfix

If multiple is true, return meta as array (trunk)