Use latest Xfce-dev-tools to get rid of revision and linguas
substitution, remove the LINGUAS file. Use git instead of svn in the
version generation.

Fix distcheck by cleaning some pathes in Makefile.am and adding some
temporary files to POTFILES.skip.

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Transmitted-via: Transifex (translations.xfce.org)

Add the module.xml file.

A test was incorrect, and escaping the screenshot path is safer in
most cases.

When scrolling the panel plugin button, the region to be
screenshooted is changed. This is faster than opening the
preferences dialog.

When the screen is composited, use a nicer area selection mecanism. Draw
a fullscreen transparent window which is darker than the normal view.
When the user draws a rectangle with the mouse, show the "normal" view
in this rectangle: the area which will be grabbed is normal, the rest
of the screen is darker.

A "traditionnal" rubber banding ala Thunar or Xfdesktop could be nicer,
this has to be investigated.

Mark the default screenshot title as translatable.

Factorize the code to open the help page.

If it does not exist, use the home directory as a fallback.

Try to set some sane defaults: always append the date and the time to
the file name, the default title being "Screenshot". The title and
horodating options are still setable in the configuration file.

Fix the date format and always save the preferences in the main app.

Add two new options: the title of the capture is now customizable and
is used to generate the name of the saved captures. It is now also
possible to append the date and the time of capturing to the name of
the saved file (TODO: check if "horodating" exists in English).

Fix a leak in the panel plugin.

Use horizontal boxes instead of a table to place the combobox and the
file chooser. This makes the dialog smaller and saves a lot of wasted
space.

Don't exit the gtk main loop when running the panel plugin, or the
panel plugin will be killed.

Don't accept two region options or two action options. Warn the user
that mouse, delay and action option are ignored when passed without a
region option. At the moment, those error and warning messages are only
displayed in logs or in a terminal. I don't think it's worth showing an
error dialog for this.

This new interface is based on a suggestion by Yves-Alexis Pérez. The
former main dialog is split into two dialogs: one for selecting the
region to be captured and the delay, while the second one displays a
preview of the screenshot and lists the available actions.

The main application shows the first dialog, then the second one. If
one of the region cli options is given, the screenshot is taken
accordingly and the second dialog is displayed.

The panel plugin uses the first dialog as a configuration dialog. When
you click the plugin, the screenshot is taken and the second dialog is
shown.

In some cases, the WM/X server does not update the active window
quickly enough. When running the application and taking a screenshot
of the active window this can create a corrupted screenshot. Adding
a one second delay in that case fixes this issue.

The thumbnail's width and height now have a maximum of 150 pixels, if
they are less than 150 pixels, use the screenshot itself as a
thumbnail.

This option creates a lot of technical issues which are currently
painful to fix. Moreover, I want to keep things simple in the future.

Now that the idle func no longer creates the dialog, it shouldn't
be needed anymore. This needs some testing on a low computer.

Now, the main dialog of the application is created once in main.c
and hidden/shown when necessary. The idle func is now only responsible
for taking the screenshot and hidding/showing the dialog when needed.

Add a dialog member to the ScreenshotData struct, set it correctly in
the panel plugin and in the application. Fix some indentation in the
panel plugin code.

Also remove all the Makefile.am in the documentation directory.

Fix various regressions due to the switch to a non-recursive Makefile:
make -j was broken (fixed by using LDADD) and the desktop file for the
panel plugin was not installed because of some copy/paste errors.

Still to be done: add the rules for the documentation to the toplevel
Makefile.am.

The non-recursive Makefile.am is used to build the convenience library,
the main application and the panel plugin. This reduces the build time
and it is no longer necessary to clean the whole project before build
to test changes in the convenience library.

Recursive makefiles are still used for the translations, the
documentation and the icons.

This reverts commit f6a458b1.