-fixed LDC demos compilation

-clean ThreadPool code
-fixed betterC demos compilation

demos/dub.json

@@ -19,8 +19,7 @@
 	"libs-linux-x86_64": ["cimgui","SDL2","SDL2_image"],
 	"lflags-linux-x86_64": ["-rpath=libs/linux/x64/","-Llibs/linux/x64/"],
 	"dflags-ldc" : [
-		"--ffast-math",
-		"-enable-cross-module-inlining"
+		"--ffast-math"
 	],
 	"configurations" : [
 		{

demos/external/sources/mmutils/thread_pool.d

@@ -33,8 +33,14 @@ else
 version (D_BetterC)
 {
 	version (Posix) version = MM_USE_POSIX_THREADS;
-	import bubel.ecs.std;
-	extern (C) __gshared int _d_eh_personality(int, int, size_t, void*, void*)
+
+    extern (C) void free(void*) @nogc nothrow @system;
+    extern (C) void* malloc(size_t size) @nogc nothrow @system;
+    extern (C) void* realloc(void*, size_t size) @nogc nothrow @system;
+    extern (C) void* memcpy(return void*, scope const void*, size_t size) @nogc nothrow @system;
+
+	//hacks for LDC
+	/*extern (C) __gshared int _d_eh_personality(int, int, size_t, void*, void*)
 	{
 		return 0;
 	}
@@ -47,7 +53,7 @@ version (D_BetterC)
 	extern (C) void* _d_allocmemory(size_t sz)
 	{
 		return malloc(sz);
-	}
+	}*/
 }
 else
 {

demos/utils/dub.json

@@ -29,7 +29,7 @@
 			"subConfigurations": 
 			{
 				"bindbc-sdl": "static",
-				"ecs":"library"		
+				"bubel_ecs":"library"		
 			}
 		},
 		{
@@ -41,7 +41,7 @@
 			"subConfigurations": 
 			{
 				"bindbc-sdl": "staticBC",
-				"ecs":"library-betterC"	
+				"bubel_ecs":"library-betterC"	
 			}
 		}
 	]