added track.c to std (close #182)

Makefile

@@ -22,7 +22,8 @@ RUNTIME = src/alloc.o
 
 STD = src/std/array.o src/std/buffer.o src/std/bytes.o src/std/cast.o src/std/date.o src/std/error.o src/std/debug.o \
 	src/std/file.o src/std/fun.o src/std/maps.o src/std/math.o src/std/obj.o src/std/random.o src/std/regexp.o \
-	src/std/socket.o src/std/string.o src/std/sys.o src/std/types.o src/std/ucs2.o src/std/thread.o src/std/process.o
+	src/std/socket.o src/std/string.o src/std/sys.o src/std/types.o src/std/ucs2.o src/std/thread.o src/std/process.o \
+	src/std/track.o
 
 HL = src/code.o src/jit.o src/main.o src/module.o src/debugger.o
 

libhl.vcxproj

@@ -269,9 +269,9 @@
     <ClCompile Include="src\std\string.c" />
     <ClCompile Include="src\std\sys.c" />
     <ClCompile Include="src\std\thread.c" />
+    <ClCompile Include="src\std\track.c" />
     <ClCompile Include="src\std\types.c" />
     <ClCompile Include="src\std\ucs2.c" />
-    <ClCompile Include="src\track.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\pcre\config.h" />

libhl.vcxproj.filters

@@ -103,9 +103,6 @@
     <ClCompile Include="src\std\debug.c">
       <Filter>std</Filter>
     </ClCompile>
-    <ClCompile Include="src\track.c">
-      <Filter>std</Filter>
-    </ClCompile>
     <ClCompile Include="include\pcre\pcre_ucd.c">
       <Filter>pcre</Filter>
     </ClCompile>
@@ -115,6 +112,9 @@
     <ClCompile Include="include\pcre\pcre16_ord2utf16.c">
       <Filter>pcre</Filter>
     </ClCompile>
+    <ClCompile Include="src\std\track.c">
+      <Filter>std</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\pcre\config.h">