Added translation settings (change language in settings)

New:
- Settings window (so far only choosing language)
- 'settings' table with 2 rows (setting -> type of setting e.g. language, parameter1 -> data)

You have to rebuild (manually delete) your Moneychanger database to add the new settings table.

The German translations isn't finished yet because there still might happen a few changes to the UI until the first release. It's just the windows "Settings" and "Deposit" I have translated to demonstrat the changing the language works.

After changing the language you have to restart the application (info messagebox pops up).
How to for translators and maintainer
Show native language name in combobox instead English short form.
Added all Wizards + Passphrase dialogs.
Small merging problems fixed
Merge branch 'master' of git://github.com/lclc/Moneychanger into lclc-master

Conflicts:
	src/main.cpp
	src/moneychanger.cpp
	src/moneychanger.pro

Merging lclc changes by hand.
Merge pull request #20 from FellowTraveler/gui

Gui