Building igl statically and moving to the dep scripts

Fixing dep build script on Windows and removing some warnings.

Use bundled igl by default.

Not building with the dependency scripts if not explicitly stated. This way, it will stay in
Fix the libigl patch to include C source files in header only mode.

src/igl/verbose.h

@@ -1,46 +0,0 @@
-// This file is part of libigl, a simple c++ geometry processing library.
-// 
-// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
-// 
-// This Source Code Form is subject to the terms of the Mozilla Public License 
-// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
-// obtain one at http://mozilla.org/MPL/2.0/.
-#ifndef IGL_VERBOSE_H
-#define IGL_VERBOSE_H
-
-// This function is only useful as a header-only inlined function
-
-namespace igl
-{
-  // Provide a wrapper for printf, called verbose that functions exactly like
-  // printf if VERBOSE is defined and does exactly nothing if VERBOSE is
-  // undefined
-  inline int verbose(const char * msg,...);
-}
-
-
-
-#include <cstdio>
-#ifdef VERBOSE
-#  include <cstdarg>
-#endif
-
-#include <string>
-// http://channel9.msdn.com/forums/techoff/254707-wrapping-printf-in-c/
-#ifdef VERBOSE
-inline int igl::verbose(const char * msg,...)
-{
-  va_list argList;
-  va_start(argList, msg);
-  int count = vprintf(msg, argList);
-  va_end(argList);
-  return count;
-}
-#else
-inline int igl::verbose(const char * /*msg*/,...)
-{
-  return 0;
-}
-#endif
-
-#endif