dvb-firmware: update to dvb-firmware-0.0.42

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libepoxy: build as shared library to avoid "(EE) Failed to load /usr/lib/xorg/modules/libglamoregl.so: /usr/lib/xorg/modules/libglamoregl.so: undefined symbol: epoxy_eglCreateImageKHR"

Signed-off-by: Stephan Raue <stephan@openelec.tv>
gettext: update to gettext-0.19.2

Signed-off-by: Stephan Raue <stephan@openelec.tv>