Update runner.rb

Added ability to redirect output to log file in non-daemon mode as well.
Update README.md

Updated -l flag setting documentation for daemon and non-daemon modes.
Merge pull request #7 from rkatti/master

Update runner.rb
Allow for a options validation hook
Pass options into validation hook
Document in Readme
Merge pull request #9 from rkatti/master

Validation Hook for Options
Added default log file path to /var/log/<executable>.log
Fixed a minor bug with default /var/log/application.name.log feature
Added documentation for default log file in daemon mode
Merge pull request #10 from rkatti/master

Adding default log location in daemon mode
Bump to 0.2.0 release!
Add a Force option for force killing