Replaced capitalize() method to mitigate issue with camelCase flavors

[fobo66]

I used Apache Commons for the capitalization, which may be unreasonable. So if it's not okay to use Commons, it's possible to rewrite the existing method to not interfere with the camelCase names of the flavors.

I've added a test case for the issue, so you can see that it will fail without the fix.

Also, compilation failed for me because of the public modifier in the enum, so I changed that as well.

Closes #183