Format numbers before writing to json

[Desrever Nu]

or we risk ending up with default notation.

For instance now we have this in the default config :

"priceIncrement":3.0E-4,

I suggest the following :

Utils.formatNumber(<yournumber>,Settings.DEFAULT_PRECISION) 

[Benjamin Cordes]

This needs a change in Gson serializer. complicated... I tried solutions suggested here, but its not working

http://stackoverflow.com/questions/11119094/switch-off-scientific-notation-in-gson-double-serialization

[Desrever Nu]

I also tried a couple of solutions without success. Scientific notation is handled correctly when read from file to UI.

The only case where this could create issues is when the user types a small number in the UI and then wants to edit the config manually.

Its a very unlikely situation, we can postpone it

[Benjamin Cordes]

can be achieved like this. but currently I can't reproduce, since Json String output works correctly also. I assume this happens only when we post via the UI.

GsonBuilder gson = new GsonBuilder().setPrettyPrinting();
 gson.setLongSerializationPolicy( LongSerializationPolicy.STRING );