Revert "Remove current working directory from search paths"

This reverts commit 12d8763.

Author: xzyfer

src/context.cpp

@@ -90,9 +90,8 @@ namespace Sass {
 
   {
 
-    // Sass 3.4: The current working directory will no longer be placed onto the Sass load path by default.
-    // If you need the current working directory to be available, set SASS_PATH=. in your shell's environment.
-    // include_paths.push_back(CWD);
+    // add cwd to include paths
+    include_paths.push_back(CWD);
 
     // collect more paths from different options
     collect_include_paths(c_options.include_path);