Changed the name from "Fraise" to "Erbele"

There were several reasons why I decided to change the repository name and product name of "Fraise" to the current name "Erbele". You may find a list of reasons in the issue https://github.com/abentele/Fraise/issues/46.

But why "Erbele"? That's simple: Fraise was forked from Smultron in 2010. "Smultron" is the Swedish word for "wild strawberry", and "Fraise" is the French word for "Strawberry". As I'm a German software developer, why not using the same word in German? But in German it would be "Walderdbeere", which is a little bulky. This is the reason why I used the Swabian (Swabian is a German dialect) word for it, which is "Erbele". I think most people in Germany today don't know this term (even the Swabian people), and there's no other brand using this term.

Note that I use this new name as a code name for the program until someone finds a better name. Please let me know what you think about the new name.