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
Automatic commit of package [rubygem-kafo] minor release [0.3.9-1].
Fix dumping 'false' default values
Merge pull request #62 from ares/master

Fix dumping 'false' default values
Automatic commit of package [rubygem-kafo] minor release [0.3.10-1].
Display fatal errors on STDOUT
Merge pull request #63 from ares/master

Display fatal errors on STDOUT
Automatic commit of package [rubygem-kafo] minor release [0.3.11-1].
Fix --no-colors issues with older highline
Merge pull request #64 from ares/master

Fix --no-colors issues with older highline
Automatic commit of package [rubygem-kafo] minor release [0.3.12-1].
Fix #4343 - adds compatibility with latest puppet version

Tested with major releases from 2.7 to 3.4
Merge pull request #66 from ares/master

Fix #4343 - adds compatibility with latest puppet version
Automatic commit of package [rubygem-kafo] minor release [0.3.13-1].
Fix #4347 - validations adapted to latest puppet
Merge pull request #67 from ares/master

Fix #4347 - validations adapted to latest puppet
Automatic commit of package [rubygem-kafo] minor release [0.3.14-1].
Fix #4367 - current environment compatible with all puppet versions

Validator is covered by tests now.
Merge pull request #68 from ares/master

Fix for puppet 3.5