Fix boost build, don't copy files as symlink but actual files when

packaging.

Simplify crtmpserver Makefile

boost/Makefile

 package:
 	rm -rf out
 	mkdir -p out/opt/cppse/build/boost/include/
-	cp -prv boost/stage/lib out/opt/cppse/build/boost/
-	cp -prv boost/boost out/opt/cppse/build/boost/include/
+	cp -L -prv boost/stage/lib out/opt/cppse/build/boost/
+	cp -L -prv boost/boost out/opt/cppse/build/boost/include/
 	rm -rf boost_*_amd64.deb
 	docker run -v "$$(pwd):/src/" rayburgemeestre/fpm-ubuntu:18.04 fpm -v 1.1 -s dir -t deb -n boost --license MPL2 --maintainer "Ray Burgemeestre <ray@cppse.nl>" --description "boost - build dependency" --url "https://github.com/liballeg/boost.git" --deb-generate-changes -C /src/out
 

crtmpserver/Makefile

 SHELL:=/bin/bash
 
 crtmpserver:
-	git clone https://github.com/rayburgemeestre/crtmpserver
-	pushd crtmpserver && git checkout lib
+	git clone --branch lib https://github.com/rayburgemeestre/crtmpserver
 	bash ../ubuntu1804.sh make impl
 	make package