CLOUDIFY-1964

Add Validator class which is used by the ManagerBoot cmd to validate a given DSL is ok without starting the entire management environment
Merge branch 'develop' into feature/CLOUDIFY-1964_validate_syntax_cmd_option
CLOUDIFY-1964 Fix log message syntax, add log message for successfull validation
Merge pull request #39 from CloudifySource/feature/CLOUDIFY-1964_validate_syntax_cmd_option

CLOUDIFY-1964 validate syntax cmd option