[FEATURE] Add custom process manager.
[FEATURE] Requre gateway process manager, log process name.
[CHORE] Add __dirname for absolute paths.
[FEATURE
] Use s-west.ripple.com in ripple-lib remote.
[CHORE] Add __dirname for absolute paths.
[BUG] Fix error in path names.
Merge pull request #44 from ripple/childprocess

[FEATURE] Add child process manager and full path names