Merge branch '3.0.0-responsive-tables' of https://github.com/juthilo/bootstrap-wip...

Conflicts:
	less/mixins.less

diff --cc docs/assets/css/bootstrap.css
index 6a426850afd320faab501e692b319b9c22a14cc4,708ea42eada63ef343141b2548ff4166fa16131c..90482621e32234d279c01172a38f2cec52ab6f30
--- 1/docs/assets/css/bootstrap.css
--- 2/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@@ -4696,7 -4768,14 +4765,16 @@@ td.hidden-lg 
  .visible-print {
    display: none !important;
  }
 +
+ tr.visible-print {
+   display: none !important;
+ }
++
+ th.visible-print,
+ td.visible-print {
+   display: none !important;
+ }
+ 
  @media print {
    .visible-print {
      display: block !important;
@@@ -4711,4 -4790,4 +4789,11 @@@
    .hidden-print {
      display: none !important;
    }
++  tr.hidden-print {
++    display: none !important;
++  }
++  th.hidden-print,
++  td.hidden-print {
++    display: none !important;
++  }
  }

diff --cc less/mixins.less
index 127bc14d7a4226426509a316fab71c13328ea222,3161a845fa11be46a0dbc2e9f2920374755150b3..eb05623ac93bfb16220ab989aed92c9757344f20
--- 1/less/mixins.less
--- 2/less/mixins.less
+++ b/less/mixins.less
@@@ -411,6 -411,15 +411,13 @@@
    td& { display: table-cell !important; }
  }
  
 -
 -
+ .responsive-invisibility() {
+   display: none !important;
+   tr& { display: none !important; }
+   th&,
+   td& { display: none !important; }
+ }
+ 
  // Grid System
  // -----------