Move grunt + other stuff to root + update all tasks paths, change autoprefixer-core for autoprefixer

.editorconfig

@@ -0,0 +1,18 @@
+# editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.json,.bowerrc]
+insert_final_newline = false
+
+[{.htaccess,.bowerrc,bower.json,package.json,component.json}]
+indent_style = space
+indent_size = 2