Version bump
Automatic commit of package [rubygem-kafo] minor release [0.3.8-1].
Fix few smaller issues

* Fix default values dumping for direct values instead of using $variables
from params class
* Default log file prevents errors during other errors
* Put project name into installer config template
* Typo in kafofy instructions
Merge pull request #61 from ares/fix/small_issues

Fix few smaller issues