Fixed a bug where prices under 1.00 would not get calculated. 

Integer was used instead of Double for prices.

Amount in database changed from Int to Float.

This does not convert an existing (UUID based) database! To convert it execute the following:
```SQL
ALTER TABLE `csnUUID` CHANGE Amount intAmount INTEGER;
ALTER TABLE `csnUUID` ADD Amount float(53);
UPDATE `csnUUID` SET Amount=intAmount;
ALTER TABLE `csnUUID` DROP intAmount;```