Removed use of File::Find since it's not needed here and it interferes with Brownie's find keyword

File::Find is imported but not used in StepFile.pm.
Removed import since the module Brownie::DSL has it’s own function
›find‹.
Merge pull request #25 from glauschwuffel/master

Removed use of File::Find since it's not needed here and it interferes w...