Tweak parameter labels
Revert "Pass list of PSSM files to makeprofiledb via stdin"

This reverts commit 0357a74937a45d70c3ff7009718d95dfcd68da1a
and adds a comment for future reference.
makeprofiledb 2.2.29 does not like quoted filenames in input list
Remove makeprofiledb -dbtype option (see discussion on #26)