Major cleanup of dead/deprecated code, part II

Signed-off-by: Rob Caelers <robc@krandor.org>
Remove unused singals.

Signed-off-by: Rob Caelers <robc@krandor.org>
Remove GtkApplication.

Signed-off-by: Rob Caelers <robc@krandor.org>
Reading mode refactoring (part I)

Signed-off-by: Rob Caelers <robc@krandor.org>
Add CMake support.

Signed-off-by: Rob Caelers <robc@krandor.org>
Fix win32 cross compilation with new GTK2 runtime.

Signed-off-by: Rob Caelers <robc@krandor.org>
Update locale.inc

Signed-off-by: Rob Caelers <robc@krandor.org>
Update workrave.pot

Signed-off-by: Rob Caelers <robc@krandor.org>
Initial Qt GUI.

Signed-off-by: Rob Caelers <robc@krandor.org>