added shell method for safe shell calls
moved fail method to BaseModule class, added to its output classname. added info method for logging. setting module's config to empty hash if it not presented
updated all calls "puts" to "info"
removed INFO word from output in info method, now it looks clearer
updated README file
a little bit cleanup
removed deploy.rb file
moved config examples to examples dir. updated paths in USAGE doc file
removed code duplication for runtime config params calculations. renamed 'mac' platform to 'osx'
updated CONFIGURATION doc file
changed message with info which module will start running