Tweaks to the API documentation

  * Update the Doxyfile for 1.7.6.1. Doxywizard reformatted the comments; that's why this change is so big
  * Disable graph inheritance trees; use "Inherits/Inherited by" lists instead (Doxygen has this on by default; I don't think it was intentional)
  * Shorten two subgroup names; helps with formatting in Doxygen 1.8 and looks cleaner
  * Moves the page footer ("The Haiku Book pre-R1...") be in a <footer> tag, and add a CSS rule for this tag
  * Disable XML output, no one is using it
  * Disable Microsoft IDL parsing, speeds up Doxygen a bit
Turn class diagrams back on
Wrong variable used in null-check (CID #1108197)
Radeon accelerant: typo in vertical limit check (CID #991138)
ScreenSaver: Stop saver on General tab.

Unfortunately OpenGL screen saver previews draw on top of the tabview,
so, when you switch to the General tab we now stop the screen saver
and then restart it when you come back to the Screensavers tab.
ScreenSaver: use stack variable to prevent memory leak
BMenuItem: Style fixes related to documentation.
Document the BMenuItem class in the Haiku Book.
Update translations from Pootle
Update translations from Pootle
Use local time when computing max-age expiration

BDateTime.SetTime_t expects its parameter to be in local time.
Update HaikuWebkit to version 1.2.4.

The source package is missing, because I can't upload it to the repo.
This is too slow and has failed several times.
ProcessController: add missing B_TRANSLATE_MARK

Thanks to Diver for reporting!
Fix feedback divider value approximation

* The rounding algorithm here expects to start with the 2 digits
  after the decimal point in pll->feedbackDivFrac. Multiplying with
  1000 instead of 100 filled it with 3 digits.
  The last step then set the fractional part to zero because it was
  still too large.
Make code a bit easier to read, add some comments

* No functional change intended
Oops, remove leftover "TODO" in comment
Remove outsourced findutils/xargs provides from haiku package.
AHCI/BFS: fixed temporary trim debug output.
Add missing texinfo to bootstrap package list.
Don't try to put findutils-commands on bootstrap image.

* findutils has been moved out to a haikuport, so the commands are no
  longer known to the build system