agent: Rename bootstrap-install to install

Signed-off-by: Eduardo L. Buratti <elb09@c3sl.ufpr.br>
agent: Add bootstrap/update

Signed-off-by: Eduardo L. Buratti <elb09@c3sl.ufpr.br>
agent: Split package rule into {install,update}-package in Makefile.in

Signed-off-by: Eduardo L. Buratti <elb09@c3sl.ufpr.br>
agent: Fix default bootstrap in build-package.sh

Signed-off-by: Eduardo L. Buratti <elb09@c3sl.ufpr.br>