Version 0.4:
- added German translation
- show status tip for the "Open Recent" and "Export" submenus
- it is now possible to have more than one image in one document: just
  put the different tikzpictures one below the other in the code and
  then press the "Show previous image" and "Show next image" button to
  browse between the previews (but it is not possible to save or export
  them separately)
- the previous picture is not displayed anymore in the preview when
  the text edit becomes empty (or when the user starts a new document)
- the document modification status is shown correctly now in the title bar
- the preview can be scrolled by dragging the image
- added undo, redo and select all to the Edit menu and to the toolbar
- added comment/uncomment of the current line or selection
- the scrollbars will disappear if the image becomes smaller than the
  view when zooming out
- added a menu with tikz commands
- a better highlighting of the tikz code is implemented based on the
  contents of the tikz commands menu
- made an application icon (I just took the kate icon from oxygen and
  added the text "KTikZ", the text in the icon is in the Fertigo font
  from http://www.josbuivenga.demon.nl/fertigo.html)
- added What's This texts for most widgets and icons
- added a configuration dialog (the highlighting colors and fonts, the
  number of entries in the "Open Recent" menu and the path to pdflatex
  and pdftops can be set)
- messages on standard output are only shown when compiled in debug mode
- in the log box short messages are shown instead of the contents of the
  log file; the contents of the log file can be viewed by pressing the
  "View Log" button
- added an "Abort typesetting" button; for example, typesetting the
  following code never exits:
  \begin{tikzpicture}[x=1cm,y=1cm % note the missing ]
    \draw[->] (0,0) -- (4,0);
  \end{tikzpicture}
- added a context menu to the preview area
- more sensible default sizes for the different widgets in the main
  window on first startup
Version 0.3:
- show in the statusbar the position of the cursor in the text edit
- the preview image (in PDF format) is displayed using poppler instead
  of converting the PDF file to PNG first and displaying the PNG file
  (poppler version 0.5.4 is used)
- added zooming of the image (using poppler)
- export to PNG is done directly in Qt now; as a consequence (of this
  and of using poppler to display the preview image) ktikz no longer
  depends on ImageMagick
- added "Open Recent" menu
- if ktikz is run on the command line, then it loads the first argument
  (if it is a valid file name)
- the open/save file dialog remembers the last directory in which a
  PGF source file was opened/saved
- loading of translations if available
- added French translation
- changed qmake files so that the files will be installed in the correct
  place (the installation prefix can be configured in the file conf.pri)
- the wait cursor is displayed while typesetting the PGF picture to PDF
Version 0.2:
- replaced the icons in XPM format by icons in PNG format from KDE4's
  Oxygen theme (obtained from
  svn://anonsvn.kde.org/home/kde/trunk/KDE/kdelibs/pics/oxygen)
- placed the text edit and the preview area in a splitter so that their
  relative width can be changed by the user
- placed the log text edit in a dockwidget (which can be hidden)
- temporary files are now put in QDir::tempPath() + "/ktikz"
  (on Linux this is /tmp/ktikz), so your working directory remains clean
- closing the application now removes all temporary files and stops the
  thread
- the first time that the thread (generating the output image) is
  executed is not on startup anymore, but when the user actually
  changes the text or loads a file
- images can now be exported to EPS, PDF and PNG
- for some standard actions, the standard key sequence is used (e.g.
  QKeySequence::Open instead of Ctrl+O)
- the toolbars can be hidden
- corrected typo "TiKz" to "TikZ"
- a function runProcess is used which makes the code of generatePdfFile
  and generatePngFile easier (in tikzpngpreviewer.cpp)
- made a better about dialog
