Changes in the UI

Here is the pull request again with all issues that we have discoused fixed.

Tickers values themselves will probably change, but we have the baseline in code for different values based if the axis are logritmic or linear.
Re: string - Android has a quirk with the preference list where it forces you use strings. I've run into this before. See issue:

https://code.google.com/p/android/issues/detail?id=2096