Before issue #11 the value of config_overwrite was false.
To allow overwriting of config items it was changed to true.
That led to bugs with items, that should act as arrays.
* Change: new table mlf2_temp_infos
* Change: add a box to show the version number of the installed version
* Change: load version info only during daily actions
* Change: simplified release info
* Fix: text change in every language except the base language?!
* Fix: remove superfluous and in some cases script breaking query
close#123
