alpha

Alpha release!

In this commit many things happened, but due to the major change of the
structure I just squashed everything to one feature commit.

First of all the server/client model was updated according to #24: slave
instances now run as a limited version of a master server, keeping track
of their own local components. The master server starts a new slave
managing socket server, that listens for new connections of slave
servers and sends and receives serialized commands over the socket
connection.

The logging model has been changed fundamentally too (#26). The demo example
with start all and an opened interactive cli gui generates the following
structure:

/tmp/Hyperion/log/
├── hyperion-vm
│   ├── client
│   ├── component
│   │   ├── nav@hyperion-vm
│   │   │   └── latest.log
│   │   └── top@hyperion-vm
│   │       └── latest.log
│   ├── server
│   ├── slave
│   │   └── Hyperion-DEMO.log
│   └── standalone
├── localhost
│   ├── client
│   │   └── 13-39-08.log
│   ├── component
│   │   ├── roscore@localhost
│   │   │   └── latest.log
│   │   ├── xclock@localhost
│   │   │   └── latest.log
│   │   └── xeyes@localhost
│   │       └── latest.log
│   ├── server
│   │   └── Hyperion-DEMO.log
│   ├── slave
│   └── standalone
└── remote
    └── slave
            └── Hyperion-DEMO@hyperion-vm_13-38-57.log

The log directory holds 3 types of directory on the first level:
'localhost' for commits from locally started components, 'remote' for
remote logs that are copied over and 'HOSTNAME' which is an sshfs mount
pointing to a slave machines /tmp/log/Hyperion/localhost directory.

Inside the localhost directory are directories for each (non-trivial)
run mode and a directory for component logs.

In summary this commit provides all initially planned functionality for
the interactive gui. The PyQt gui will be updated soon and a web ui is
planned too. From here on the focus is shifted from new feature
developement to bringing more stability.

Fixes #27, #26, #23, #24