camelize output is unexpected.

[janwirth]

Case 1: preserving unwanted special characters
I expect camelize ".hello world" --> "helloWorld"
Currently it is camelize ".hello world" --> ".helloWorld"

Case 2: preserving unwanted special characters
I expect camelize "hello world" --> "helloWorld"
Currently it is camelize "hello world" --> "HelloWorld"

It does the same as classify... except it preserves special characters