ENGINEERING and FUEL string (UI Core)

Colon ```:```

![colon](https://f.cloud.github.com/assets/1929111/1846310/34862eec-75e8-11e3-97f4-594e709f9a74.png)


EDIT
piloting
https://github.com/pioneerspacesim/pioneer/blob/168db4e19e54216cb999df8d8af819853efe3c9e/data/lang/ui-core/en.json#L668
nav.
https://github.com/pioneerspacesim/pioneer/blob/168db4e19e54216cb999df8d8af819853efe3c9e/data/lang/ui-core/en.json#L588
sensors
https://github.com/pioneerspacesim/pioneer/blob/168db4e19e54216cb999df8d8af819853efe3c9e/data/lang/ui-core/en.json#L776