v0.4.0

Changes from 0.4.0-beta2:

• Fix autocomplete on explicit template instantiation. For example, function call tips are now properly displayed for all four versions of "templated" in this code:

  int templated(T)(int i)
  {
      return 100;
  }
  
  void main(string[] args)
  {
      templated();
      templated!(string)();
      templated!string();
      templated!"str"();
  }

• Update libdparse dependency to fix various parsing bugs.

• Fix building with LDC