Clean up SSH option examples.
Clearer formatting and wrap at 72.
Typo/phrasing.
Merge pull request #938 from richardkmichael/master

Staging template cleanup.
Updated ruby 1.9 hash syntax
Merge pull request #942 from justanshulsharma/master

Updated ruby 1.9 hash syntax
1) removed support for capturing previous_revision
2) capturing current_revision based on correct branch and dropping a REVISION file into current_release_path during deployments
Add :previous_revision early in the Cap run