Use _ instead of - for config options

Config options containing "-" don't work when reading
configuration from a file; change these to "_". Leave
the old options for backwards compatibility.

Closes-Bug: #1386486

Change-Id: Ie10a548191effa2a505309d9d4ee32003f9676a2
Merge "Use _ instead of - for config options"
Updated from global requirements

Change-Id: I9a48d7388515daa61e4fd7748480cfe1fb11aaaa
Fix badly named function _get_kernel_params()

Renamed _get_kernel_params() to _get_agent_params() and
appropriate module-level attribute KPARAMS to APARAMS.

Updated agent tests to match new function name.

Change-Id: I4cdf1defee7487785967a092c81c906d40bf3214
Closes-Bug: #1367917
Workflow documentation is now in infra-manual

Replace URLs for workflow documentation to appropriate parts of the
OpenStack Project Infrastructure Manual.

Change-Id: I7f7196b740006b8a2d7123ad6e781e35718da07d
Merge "Workflow documentation is now in infra-manual"