Small improvements in white-space handling

In shell-path escaping all types of whitespace
and escaping round brackets.
Comments and error-reporting improvements.
Added progress-tracker from vinzi.eis (refactored)
Extended vParams to handle :prefix when reading.

If you pass the options :prefix "xyz"  the properties will be
filtered for only those starting with "xyz.".
Improved progres-monitor, properties & logging
Extend vDbInspect funtionality
Added the vDbAnalize namespace
Improved logging by adding lpps and lfs

- lfs: first forces realisation of its parameter and next captures the
  output (might result in output on stdout
  (separate printing from output during realization
- lpps:  first force realization and next pprint the output.