Preserve environment when calling the kismet_capture client. We need
stuff like $DISPLAY or $XAUTHORITY to display the consolehelper dialog.

Index: kismet-2009-06-R1/ipc_remote.cc
===================================================================
--- kismet-2009-06-R1.orig/ipc_remote.cc
+++ kismet-2009-06-R1/ipc_remote.cc
@@ -323,7 +323,7 @@ int IPCRemote::SpawnIPC() {
 
 				snprintf(cmdarg[1], 4, "%d", sockpair[0]);
 
-				if (execve(cmdarg[0], cmdarg, NULL) < 0) {
+				if (execve(cmdarg[0], cmdarg, globalreg->envp) < 0) {
 					int status = errno;
 					fprintf(stderr, "Failed to exec as IPC child: %s\n", 
 							strerror(status));