updated for version 7.3.034

Problem:    Win32: may be loading .dll from the wrong directory.
Solution:   Go to the Vim executable directory when opening a library.

src/if_ruby.c

@@ -55,7 +55,7 @@
 # define symbol_from_dll dlsym
 # define close_dll dlclose
 #else
-# define load_dll LoadLibrary
+# define load_dll vimLoadLib
 # define symbol_from_dll GetProcAddress
 # define close_dll FreeLibrary
 #endif