Add SysV init scripts


NOTE: completely untested!!!

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
makefile: install targets

All targest will be installed relevant to PREFIX env variable.
Add 2 new targets:

 - install_db_node
 - install_compute_node

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Merge pull request #228 from virtualopensystems/sysv

SysV init scripts