somewhat to move less relevant material out of the way to some extent.
The main changes are:
* Update date and version info
* Mention other tools in the quick-start guide
* Document --child-silent-after-fork
* Rearrange order of sections in the Valgrind Core chapter, to move
advanced stuff (client requests) to the end, and compact stuff
relevant to the majority of users towards the front
* Move MPI debugging stuff from the Core manual (a nonsensical place
for it) to the Memcheck chapter
* Update the manual's introductory chapter a bit
* Connect up new tech docs summary page, and disconnect old and
very out of date valgrind/memcheck tech docs
* Add section tags to the Cachegrind manual, to stop xsltproc
complaining about their absence
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7199
