Make FacqStreamDialog compatible with gtk3

Fixes for making FacqStreamDialog compatible with gtk3.

Signed-off-by: Víctor Enríquez <victor.quicksilver@gmail.com>
Make FacqDynDialog compatible with gtk3

Fixes for making FacqDynDialog compatible with gtk3, also
I added facqdyndialog.c to the po/POTFILES.in file.

Signed-off-by: Víctor Enríquez <victor.quicksilver@gmail.com>