gulp and file structure overhaul

new gulp setup
including new npm packages
new file structure
moved all development files to source/
used files are in build/ now

source/style/elements/_embedded.scss

@@ -0,0 +1,47 @@
+// Images
+// -----------------------------------------------------------------------------
+
+img {
+	vertical-align: top;
+}
+
+picture {
+
+}
+
+source {
+
+}
+
+
+
+// Other stuff
+// -----------------------------------------------------------------------------
+
+iframe {
+
+}
+
+embed {
+
+}
+
+object {
+
+}
+
+video {
+
+}
+
+audio {
+
+}
+
+map {
+
+}
+
+area {
+
+}