bootstrap-install: Added initial message for the user

The message informs the beginning of the installation process and remembers
the user that the instalation package must be run as root and while
connected to the Internet. Also, informs that the agent need the cron and
sudo packages to be already installed in the system.

Signed-off-by: Erik Alexandre Pucci <eap08@c3sl.ufpr.br>
Acked-by: Josiney de Souza <josineys@c3sl.ufpr.br>

bootstraps/bootstrap-install

@@ -116,6 +116,11 @@ collect_information(){
            "seed.c3sl.ufpr.br\n"
 }
 
+printf "Iniciando instalação do agente PROINFODATA. Tenha certeza de %b%b%b" \
+       "estar conectado à Internet e executando este arquivo como super-" \
+       "usuário (root). Além disso, para o agente funcionar é necessário " \
+       "ter instalado no sistema os pacotes \"cron\" e \"sudo\".\n"
+
 # These variables will be replaced when generating the installation package
 MD5_CHECK=
 BOOTSTRAP_LINES=