dabbad: support multiple RPC servers running at once.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: precise server type on request

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: allow to contact a local RPC server.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: fix YAML header title indent.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabbad: merge options in main function.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabbad: no need to create a pid file anymore.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabbad: remove empty header file.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>