Merge pull request #1 from php/master

Upstream
Kill off XHTML

Long live HTML5! =)
Also remove XHTML from .inc files
Finally remove XHTML from .js files

Last but not least
Drop support for < 5.3 from highlight_php()

...to use HTML5
Replace <tt> with <code>

The <tt>-tag doesn't exists anymore in HTML5
Replace <big> with <span style....

Replace <big> with <span style="font-size:1.2em"> since <big> is obsolet
in HTML5
Replace <small> with <span style

Replace <small> with <span style="font-size:0.8em"> because the
definition of <small> is a complete other with HTML5
Revert "Replace <small> with <span style"

This reverts commit 12f04c0d4a005342080eacf8eb5440037cd3288d.
Use css class instead inline style
Typo
Use release_date() also in PHP4 changelog
Merge pull request #46 from Croydon/master

Kill off XHTML

* Croydon/master:
  Use release_date() also in PHP4 changelog
  Typo
  Use css class instead inline style
  Revert "Replace <small> with <span style"
  Replace <small> with <span style
  Replace <big> with <span style....
  Replace <tt> with <code>
  Drop support for < 5.3 from highlight_php()
  Finally remove XHTML from .js files
  Also remove XHTML from .inc files
  Kill off XHTML