[Mobile] IN PROGRESS: Significant refactor in mobile/_layout.scss

open #74
Made view-switcher visible when browsing via mobile;
Fixed class in browse.html markup from left-menu to left;
Moved object-browse-bar, top-bar classes from _controls into _layout;
Renamed and simplified menu widths in mobile _constants;
Really significant refactor of mobiles/_layout;
Tweaks in user-environ/_layout;
TO-DO: figure out why object-browse-bar flex styles not
working in mobile;

platform/commonUI/general/res/sass/controls/_controls.scss

@@ -174,7 +174,7 @@
 }
 */
 
-/*.object-browse-bar .btn,
+.object-browse-bar .btn,
 .object-browse-bar .t-btn,
 .object-browse-bar .view-switcher,
 .top-bar .buttons-main .btn,
@@ -187,7 +187,7 @@
 	font-size: $h * $btnFontSizeToH;
 	line-height: 200%;
 	vertical-align: top;
-}*/
+}
 
 label.checkbox.custom {
 	$bg: lighten($colorBodyBg, $ltGamma);