Evgeny Vereshchagin 2872296531 Update Ubuntu image tag to 14.04 ...

`apt-get update` for non-supported 12.10 doesn't work.
Building failed with
```
INFO[0011] The command [/bin/sh -c apt-get update && apt-get install -y redis-server] returned a non-zero code: 100
```

Signed-off-by: Evgeny Vereshchagin <evvers@ya.ru>
Upstream-commit: 736558b6ae15afb3f5f0d7ba7801fa44bec9f285
Component: engine

2015-01-07 18:12:02 +03:00

..

engine

Update Ubuntu image tag to 14.04

2015-01-07 18:12:02 +03:00