* Headers/AppKit/NSPopover.h,
        * Source/NSPopover.m: Adjust to GNUstep coding standards.
        * Source/externs.m: Move new strings to here.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@36555 72102866-910b-0410-8b05-ffd578937521