Initial UI cleanup

- added assets_shared submodule
- added support for grunt
- cleanup of layout.html

public_html/assets/sass/main.sass

@@ -0,0 +1,4 @@
+@import url(//fonts.googleapis.com/css?family=Open+Sans)
+@import url(//fonts.googleapis.com/css?family=Open+Sans+Condensed:300)
+@import url(../../assets_shared/css/font-borg.css)
+@import ../../assets_shared/sass/main.sass