updated to use a more generic user at the bottom of the management hierarchy
updated navigation step with options for employee summary and manage pto
updated Example table with proper format, removed Background, updated step calls
added goto_employee_summary and clear_time_off
added step definitions to use for add_vacation_for_employee and employee_time_off_management features
rubocop fixes
fixed typo
Merge pull request #25 from Orasi/add_vacation_step_definitions

Add vacation step definitions