add commander to handle before and after commands
remove exception catching from executable
remove logger for execution disabled, now all execution are disabled without notifications
promoted version to 1.0.0, to follow semantic version related to UberInstaller 0.0.1
started rebuilding the Exception interface
add link to rvm and ruby setup
complete refactor of exception interface
add TODO
fix bug in logger.rb, now handle case in which @log_path does not exists
update commander: use config to detect command file for :after and :before execution, use sudo to launch command, enable execution of non bash scripts
fix bug in runner where arch: system was not correctly recognized
add :dry_run option, to enable a dummy execution
add support for before all and after all command execution
add uberinstaller command line interface; add cli executable
add some little info to README. Needs refactoring