Feature/migrate to es6

.editorconfig

@@ -0,0 +1,19 @@
+# EditorConfig is awesome: https://editorconfig.org/
+
+# top-most EditorConfig file
+root = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.js]
+trim_trailing_whitespace = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true
+max_line_length = 100

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 coverage
+lib

README.md

@@ -33,6 +33,7 @@ Creates a fresh `glslify-deps` instance. Accepts the following options:
 * `readFile`: pass in a custom function reading files.
 * `resolve`: pass in a custom function for resolving require calls. It has
   the same signature as [glsl-resolve](http://github.com/hughsk/glsl-resolve).
+* `transformResolve`: pass in a custom function for resolving non function transforms.
 * `files`: a filename/source object mapping of files to prepopulate
   the file cache with. Useful for overriding particular file paths manually,
   most notably the "entry" file.