add toc to guide
modify stdlib path
Introduce EvalContextVariableGet

This is a major structural commit that should bring all of variables
into EvalContext.

Cleanup work around Scope is yet to come.
Don't pass whole Promise struct to FindPidMatches

It only uses pp->promiser
Kill older processes without using processes promise

This way processes promise implementation may be moved to cf-agent where it
belongs (Mantis #1974)
Move processes promises out of libpromises

This promise type is only enabled in cf-agent, so move it there
(Redmine #1974)
Split Dir into Dir (local) and AbstractDir (local/remote)
Update enterprise stubs for EvalContext
Remove unused function
Remove comment which no longer applies
Unexport function only used internally
Update for Nova_ShowPromises prototype change