Log Message:
Update to 0.7.4:

New feature: Big sorry to all translators who did all the hard work to translate \ 
xfdashboard to their language but their hard work was never included. It was my \ 
fault as I was to stupid to use Transifex client tool correctly :( Now I do not \ 
only update all locales already included but I will also fetch new ones. So the \ 
number of supported languages raised from 8 to 13. New ones are: da, de, kk, pl \ 
and tr (GH #155)
New feature: GDK backend is now optional and it will be enabled automatically if \ 
Clutter backend is available, i.e. FreeBSD does not install Clutter with GDK \ 
backend. (#13766, #13860)
New feature: Support also current xfconf versions (4.13.x). New xfconf version \ 
support native GPtrArray (from glib) for string lists and make dbus-glib \ 
deprecated. dbus-glib is only needed (and checked by configure script) if \ 
current stable xfconf (4.12.x) is used as its GPtrArray is still needed in this \ 
case. (#13824)
Fix compile issue when GTK+ prior to version 3.22 is installed. (GH #153)

New feature: Window tracker interface now supports a new experimental backend \ 
for GDK. The backend to use can be controlled with the new environment variable \ 
XFDASHBOARD_BACKEND. It can be either set to "x11" or "gdk". \ 
If this environment variable does not exists or is not set then the X11 backend \ 
is enforced as it is the known default behaviour of xfdashboard and GDK backend \ 
is marked as experimental. (GH #129)
New feature: Allow user to override CSS files of themes to apply user favourite \ 
settings. This cChanged the way and order how CSS files of themes are loaded: \ 
First the CSS resources defined in theme's theme file (xfdashboard.theme) are \ 
loaded, then user's global stylesheet \ 
($HOME/.config/xfdashboard/themes/global.css) is loaded if it exists and at last \ 
user's theme related stylesheet \ 
($HOME/.config/xfdashboard/themes/user-[THEME_NAME].css) is loaded if it exists. \ 
This should make user changes to themes more convinient as the user does not \ 
need to copy the whole theme to $HOME/.themes or $HOME/.local/themes and then \ 
make his changes. The user also does not need to update its theme each time the \ 
origin theme changes and re-copy and re-apply its changes. (GH #152)
Fixed visibility of menu items of installed application by relying more on \ 
Garcon as it does already all needed checks to determine the visibility of a \ 
menu item more reliable as xfdashboard. (GH #151)
Try to reduce usage of backend specific functions of Clutter
Lots of improvements especially at window tracker backends
As usual smaller bug-fixes and typos fixed
Also as usual: More API documentation