Minor hacks to build script - uses IPBus v1.3 and ipbb 0.3.13

AIDA_tlu/scripts/build_tlu_firmware.sh

 #!/bin/sh
 
 # Put which branch of Git to use here...
-IPBUS_BRANCH="-b enhancement/68"
+#IPBUS_BRANCH="-b enhancement/68"
+#IPBUS_BRANCH="-b enhancement/28" # -- This one works, but now deleted...
+IPBUS_BRANCH="-b v1.3"
 TLU_BRANCH=""
 
 mkdir work
 cd work
 
-curl -L https://github.com/ipbus/ipbb/archive/v0.2.8.tar.gz | tar xvz
+IPBB_VERSION="0.3.13"
+curl -L https://github.com/ipbus/ipbb/archive/v${IPBB_VERSION}.tar.gz | tar xvz
 # ( or git clone git@github.com:ipbus/ipbb.git )
-source ipbb-0.2.8/env.sh
+source ipbb-${IPBB_VERSION}/env.sh
+
 ipbb init build
+
 cd build
 ipbb add git https://github.com/ipbus/ipbus-firmware.git ${IPBUS_BRANCH}
 ipbb add git git://ohwr.org/fmc-projects/fmc-mtlu/fmc-mtlu-gw.git ${TLU_BRANCH}