fixed worker/app relationship
fix typo
work on worker support
missing import
added app/<id>/deploy endpoint
fixed deployment according to reworked Worker model
added /node API endpoints
removed useless worker base plugin
moved get_extra_kwargs method to AbstractBasePlugin class
added orchester.node.plugins.dummy: dummy plugin for nodes
updated executables to accept host and port parameters
missing import
fix imports
fix typo
Merge pull request #6 from Korrigan/master

[MASTER] Worker deployment workflow OK