Feature/all services

This is a new feature, the stand-alone server can now server all backends/services at the same time.

In order to test it, perform the following steps:
 * Create a file containing:

```python
from boto.ec2 import EC2Connection
conn = EC2Connection()
print conn.get_all_instances()

from boto.sqs.connection import SQSConnection
conn = SQSConnection()
conn.create_queue('abc')
print conn.get_queue('abc')
```

 * Configure boto to send requests to stand-alone server

```ini
[Boto]
is_secure = False
https_validate_certificates = False
proxy_port = 5000
proxy = 127.0.0.1
```

 * Run server on console A
 * Run script on console B