Revert "Changes for compatibility with swig 2.x"

This reverts commit e6929d2.

Although the fix for SWIG 2.x made the project compile successfully,
it did not function, complaining about problems with constructors and
destructors.  More work is needed to support SWIG 2.x.

swig/mapper.i

@@ -638,11 +638,11 @@ typedef struct _db {} db;
 typedef struct _admin {} admin;
 
 %extend device {
-    _device(const char *name, int port=0, admin *DISOWN=0) {
+    device(const char *name, int port=9000, admin *DISOWN=0) {
         device *d = (device *)mdev_new(name, port, (mapper_admin) DISOWN);
         return d;
     }
-    ~_device() {
+    ~device() {
         mdev_free((mapper_device)$self);
     }
     int poll(int timeout=0) {
@@ -1046,11 +1046,11 @@ typedef struct _admin {} admin;
 }
 
 %extend monitor {
-    _monitor(admin *DISOWN=0, int enable_autorequest=1) {
+    monitor(admin *DISOWN=0, int enable_autorequest=1) {
         return (monitor *)mapper_monitor_new((mapper_admin) DISOWN,
                                              enable_autorequest);
     }
-    ~_monitor() {
+    ~monitor() {
         mapper_monitor_free((mapper_monitor)$self);
     }
     int poll(int timeout=0) {
@@ -1315,10 +1315,10 @@ typedef struct _admin {} admin;
 }
 
 %extend admin {
-    _admin(const char *iface=0, const char *ip=0, int port=7570) {
+    admin(const char *iface=0, const char *ip=0, int port=7570) {
         return (admin *)mapper_admin_new(iface, ip, port);
     }
-    ~_admin() {
+    ~admin() {
         mapper_admin_free((mapper_admin)$self);
     }
 }