NOP move revu comment to spooler
REFACTOR restructure go packages; implement and use workers

This is a comprehensive mod of the codebase. Functional logic
is preserved either directly by use of previous source or by
reimplemention.

* package structure introduced - main only for server exe
* project structure slightly modified - src/ is a Go SRC dir

ADD    package "lsf"
ADD    Worker and WorkerBase mixin
MOD    all components to use Worker pattern/base
ADD    new Pipeline object to represent event processing pipe
ADD    additional pipeline startup params
ADD    Options struct for pipeline wide params
MOD    flags to use Options and Defaults
TEST   ad-hoc tested OK.

ISSUES
      - seek offset on scanned harvesters (possible bug
        from refactoring code.)

      - (existing?) multiple harvesters launched for
        same path (possible bug from refactoring)
Merge branch 'v2' into tlc

Conflicts:
	logstash-forwarder.go
	spooler.go
MERGE - full merge of refactored Go code