more space below links on homepage. remove min-height from ads because ie8

BS3 commits 6fb81f155b8e16a16e49b3fb2c0d38d516883f55,
5eead87ed73b61352126339e86a96ba7166e2754
fixes 10406: Update grid to use width on .container instead of max-width as IE8 improperly computes width

BS3 commit 0a78e7907d4082452e2bd41a0adf87ab3807675d
docs: fix typo in "Internet Explorer 8 and 9" features table. we've got your back (sorta), Linux Firefox users. CSS vs. LESS vs. styles terminology; "precompiled" terminology. fixes 10406: Update grid to use width on .container instead of max-width as IE8 improperly computes width. copyedit "Internet Explorer 8 and box-sizing" section

BS3 commits 3bb3680aacfe83c067cf6ee25ef297c10afe2404,
19db69c902bca678165cf6da8ade018923e05ead,
b15042233518c1912c7b23b9eeb042a9c1335332,
0a78e7907d4082452e2bd41a0adf87ab3807675d,
f3c644cb1b6027a0365be3c30de290d6162c8d09