Better fix for phpdbg + libedit

- fix include
- disable coloured prompt only with libedit

Author: remicollet

sapi/phpdbg/phpdbg.h

@@ -64,10 +64,13 @@
 # include "TSRM.h"
 #endif
 
-#if defined(HAVE_LIBREADLINE) || defined(HAVE_LIBEDIT)
+#ifdef LIBREADLINE
 #   include <readline/readline.h>
 #   include <readline/history.h>
 #endif
+#ifdef HAVE_LIBEDIT
+#   include <editline/readline.h>
+#endif
 
 #include "phpdbg_lexer.h"
 #include "phpdbg_cmd.h"

sapi/phpdbg/phpdbg_utils.c

@@ -400,7 +400,7 @@ PHPDBG_API const char *phpdbg_get_prompt(TSRMLS_D) /* {{{ */
 	}
 
 	/* create cached prompt */
-#ifdef HAVE_LIBREADLINE
+#ifndef HAVE_LIBEDIT
 	/* TODO: libedit doesn't seems to support coloured prompt */
 	if ((PHPDBG_G(flags) & PHPDBG_IS_COLOURED)) {
 		asprintf(