fixed java.lang.NumberFormatException ...

when using decimal values with locales having a decimal separator other than "."

https://groups.google.com/forum/#!msg/dbfit/2JNsutqfVV4/8Br6jx9Eh7cJ

My tests are working now, but "gradle clean fastbuild" throws java.lang.AssertionError: wrong expected:<0> but was:<4> in test classMethod.

It'll certainly break things for people who rely on the number format to use a colon. I was trying to find out how date/timestamp related tests deal with different locales, but didn't find any. Perhaps we'll need an option to specify the locale per page.