Removed implicit filetype value in JPetCmdParser
Removed implicit filetype value in JPetCmdParser

It made the tests fail, because you if one wrote -t hld it considered it
as 2 separate options; one needed to write -thld and no tests did that.
Also, why would we want an incorrect implicit value?

Minor spacing changes courtesy of astyle git hooks.

alexkernphysiker/j-pet-framework,JPETTomography/j-pet-framework,JPETTomography/j-pet-framework,alexkernphysiker/j-pet-framework,alexkernphysiker/j-pet-framework,alexkernphysiker/j-pet-framework,JPETTomography/j-pet-framework,alexkernphysiker/j-pet-framework