hgweb: use css margin instead of empty <p> before diffstat table
The <p> elements were used to create an empty space between the diffstat link
and the diffstat table, but they don't have any semantic meaning, so it is
better to use css instead.
Default margins for <p> elements can differ depending on the browser, but
usually the margin is 1em (exceptions are IE 6 and 7 with 14pt, which is
comparable). The css rule sets top margin to 1em.
This change is a "better version" of
70cfa7e1611b, where <p> elements were
simply properly closed.
hgweb: use css margin instead of empty <p> before <div class="atom-logo">
The <p> elements were used to create an empty space between the last menu item
(i.e. "help") and the atom feed icon, but they don't have any semantic meaning,
so it is better to use css instead.
The css rule uses top margin of 10px, which is equal to the top margin of the
menu blocks ("help", "changeset, browse", etc). Previously, with <p> elements,
the margin wasn't set explicitly and was browser-dependent.
This change is a "better version" of
70cfa7e1611b, where <p> elements were
simply properly closed.