zoom out button before zoom in in system,sector,galactic view

I don't know about this, but I made it to see what it looks like. In my mind zoom out (negative) is to the left of zoom in (positive), like on a x-axis.

However, one could argue, that we read from left to right, and you're more likely to want to zoom in to investigate something.

Perhaps some votes/opinions on this? Ping @nozmajner

![screenshot-20140805-080050](https://cloud.githubusercontent.com/assets/619390/3807460/2028a2f6-1c67-11e4-98fe-f8c42fb7343c.png)
![screenshot-20140805-080039](https://cloud.githubusercontent.com/assets/619390/3807461/259dec82-1c67-11e4-87c2-2248f805cb8f.png)
![screenshot-20140805-080009](https://cloud.githubusercontent.com/assets/619390/3807462/293c9a82-1c67-11e4-86e1-fdd02c0794f1.png)