Bug #2257: convert paths in OpenNebulaNetwork.rb to relative paths
(cherry picked from commit 485a19047dac5af86715de4173b1a28cdc1ac99a)
Bug #2257: Add a sudoers file generator
(cherry picked from commit a067fb082d6890fe6913806d205a5aae9c0ca63b)
Bug #2257: deterministic output for ruby 1.8.7

(cherry picked from commit cb15b27ea0575bc500830c2f691895bbb86a4fad)
Bug #2257: Better label for ONE commands for the sudoers file

(cherry picked from commit 886cc05b8b21ea621c7a6e1da1c30bfdf5a4d1d1)
Bug #2257: Add sudoers files for all distributions

(cherry picked from commit c80a94761337b85f3e070d2d351c079abc11c31c)
Bug #2257: rename sudoers files

(cherry picked from commit 371094bbd519b3985d9b4e40633c95a9bb557a1d)