v0.6

• add processes dependencies (#43)
• add eye-http gem (https://github.com/kostya/eye-http)
• add eye plugin example (https://github.com/kostya/eye/tree/master/examples/plugin)
• add quit option --stop_all (#39)
• add local eye runner (like foreman, used Eyefile)
• add use_leaf_child monitoring strategy (to daemonize sh -c '...') (788488a)
• add children_count, children_memory checks
• add dsl default application options (default)
• trusting external pid_file changes (#52)