reorder initializer list to correspond to class member definition order

* fixes ''Sass::Context::c_functions' will be initialized after... warning

Author: rivy

context.cpp

@@ -45,11 +45,11 @@ namespace Sass {
   : mem(Memory_Manager<AST_Node>()),
     source_c_str    (initializers.source_c_str()),
     sources         (vector<const char*>()),
-    c_functions     (vector<Sass_C_Function_Descriptor>()),
     include_paths   (initializers.include_paths()),
     queue           (vector<pair<string, const char*> >()),
     style_sheets    (map<string, Block*>()),
     source_map(File::base_name(initializers.output_path())),
+    c_functions     (vector<Sass_C_Function_Descriptor>()),
     image_path      (initializers.image_path()),
     source_comments (initializers.source_comments()),
     source_maps     (initializers.source_maps()),