* progbar.t uses now Test::More
* Tk::ProgressBar changes:
  * inc'd version to 4.015
  * setup ConfigChanged method, to reflect changes done with
    ->configure (RT #63775)
  * made _layoutRequest calls into method calls
  * removed double ->update call
  * layout requests values are now named
  * new tests
* test Tk::IsParentProcess() function in fork.t
* converted fork.t to Test::More
* removed unused variable $pid in Tk::MainWindow
* use standard libpng configure also for x86_64-linux
* do not explicitely define errno variable if not needed
* use standard libpng configure also for amd64-netbsd
* use standard libpng configure also some 64 bit variants of openbsd
* don't create working "dist" target if EUMM is not recent enough
* change Tcl_UniCharIsWordChar (RT #66205)
* fixing debian bug #613188: Xlib.h, conflicting types for
  "XKeycodeToKeysym"
* preparing Changes for Tk-804.029_500
* Change.log is not updated anymore
* XFT=1 is now default
* inc'd VERSION to 804.029_500
* Tk::Widget doesn't support gridRemove method as documented
  https://rt.cpan.org/Ticket/Display.html?id=65900
* changed shebang for "widget" script

  scripts used in EXE_FILES must not have a /usr/bin/env shebang, it
  seems.
* gitignore: tarballs
* png: use configure for more 64bit systems (amd64-* and x86_64-*)
* updated Changes for Tk-804.029_501 release