Set Xcode project file to build 32-bit app as default

For now at least, 64-bit builds can be covered in a wiki guide. Fixed a few compiler warnings in 32-bit mode.

engine/compilers/Xcode/Torque2D.xcodeproj/project.pbxproj

@@ -3775,7 +3775,7 @@
 		865A20AF165152EA00527C44 /* Shipping */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD)";
+				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				CLANG_CXX_LIBRARY = "libc++";
 				COMBINE_HIDPI_IMAGES = YES;
 				CONFIGURATION_BUILD_DIR = ../../..;
@@ -3806,7 +3806,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				OTHER_LDFLAGS = /usr/lib/libz.dylib;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				VALID_ARCHS = x86_64;
+				VALID_ARCHS = "i386 x86_64";
 				WRAPPER_EXTENSION = app;
 			};
 			name = Shipping;
@@ -3881,7 +3881,7 @@
 		869FF8D71651518C002FE082 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD)";
+				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				CLANG_CXX_LIBRARY = "libc++";
 				COMBINE_HIDPI_IMAGES = YES;
 				CONFIGURATION_BUILD_DIR = ../../..;
@@ -3914,7 +3914,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				OTHER_LDFLAGS = /usr/lib/libz.dylib;
 				PRODUCT_NAME = "$(TARGET_NAME)_DEBUG";
-				VALID_ARCHS = x86_64;
+				VALID_ARCHS = "i386 x86_64";
 				WRAPPER_EXTENSION = app;
 			};
 			name = Debug;
@@ -3922,7 +3922,7 @@
 		869FF8D81651518C002FE082 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD)";
+				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				CLANG_CXX_LIBRARY = "libc++";
 				COMBINE_HIDPI_IMAGES = YES;
 				CONFIGURATION_BUILD_DIR = ../../..;
@@ -3970,7 +3970,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				OTHER_LDFLAGS = /usr/lib/libz.dylib;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				VALID_ARCHS = x86_64;
+				VALID_ARCHS = "i386 x86_64";
 				WRAPPER_EXTENSION = app;
 			};
 			name = Release;

engine/source/2d/scene/Scene.cc

@@ -1592,7 +1592,7 @@ S32 Scene::findJointId( b2Joint* pJoint )
     AssertFatal( pJoint != NULL, "Joint cannot be NULL." );
 
     // Find joint.
-    typeReverseJointHash::iterator itr = mReverseJoints.find( (U64)pJoint );
+    typeReverseJointHash::iterator itr = mReverseJoints.find( (U32)((U64)pJoint) );
 
     if ( itr == mReverseJoints.end() )
     {
@@ -1624,7 +1624,7 @@ S32 Scene::createJoint( b2JointDef* pJointDef )
     AssertFatal( itr != mJoints.end(), "Joint already in hash table." );
 
     // Insert reverse joint.
-    mReverseJoints.insert( (U64)pJoint, jointId );
+    mReverseJoints.insert( (U32)((U64)pJoint), jointId );
 
     return jointId;
 }
@@ -3776,7 +3776,7 @@ void Scene::SayGoodbye( b2Joint* pJoint )
 
     // Remove joint references.
     mJoints.erase( jointId );
-    mReverseJoints.erase( (U64)pJoint );
+    mReverseJoints.erase( (U32)((U64)pJoint) );
 }
 
 //-----------------------------------------------------------------------------