impletement base OOB mode auth
Registering the File Types Your App Supports
update marked module
Merge branch 'develop' of github.com:rhiokim/haroopad into develop

* 'develop' of github.com:rhiokim/haroopad:
  rollback marked
  add logo & app icon
  merge marked project issue #129
  initalize markdown menual
  test menubar, but not support node-webkit
fixed #6 - error image content path in viewer
version +0.0.1
fixed conflict
implete twitter authentication