few tweaks to responsive stuff, updated docs for grid system (still needs copy editing)

lib/mixins.less

@@ -78,12 +78,13 @@
   margin-right: auto;
   .clearfix();
 }
-.columns(@columnSpan: 1) {
-  width: (@gridColumnWidth * @columnSpan) + (@gridGutterWidth * (@columnSpan - 1));
+.columns(@columns: 1) {
+  width: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns - 1));
 }
-.offset(@columnOffset: 1) {
-  margin-left: (@gridColumnWidth * @columnOffset) + (@gridGutterWidth * (@columnOffset - 1)) + @gridGutterWidth;
+.offset(@columns: 1) {
+  margin-left: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns - 1)) + (@gridGutterWidth * 2);
 }
+
 // Necessary grid styles for every column to make them appear next to each other horizontally
 .gridColumn() {
   display: inline;

lib/patterns.less

@@ -520,11 +520,11 @@ footer {
 // ------------
 
 .page-header {
-  margin-bottom: @baseLineHeight - 1;
-  border-bottom: 1px solid #ddd;
+  margin-bottom: @baseLineHeight * 1.5;
+  border-bottom: 1px solid #eee;
   .box-shadow(0 1px 0 rgba(255,255,255,.5));
   h1 {
-    margin-bottom: (@baseLineHeight / 2) - 1px;
+    margin-bottom: @baseLineHeight * .75;
   }
 }
 

lib/responsive.less

@@ -121,6 +121,7 @@
 
 }
 
+/*
 // LARGE DESKTOP & UP
 // ------------------
 
@@ -176,3 +177,4 @@
   .offset12  { .offset(12); }
 
 }
+*/

lib/scaffolding.less

@@ -85,6 +85,7 @@ a {
 // -----------
 // To customize the grid system, bring up the variables.less file and change the column count, size, and gutter there
 .row {
+  margin-left: -@gridGutterWidth;
   .clearfix();
 }
 
@@ -93,10 +94,6 @@ a {
 [class*="span"] {
   .gridColumn();
 }
-// Kill the margin on the first column
-.row > [class*="span"]:first-child {
-  margin-left: 0;
-}
 
 // Default columns
 .span1     { .columns(1); }