change default order of form select options

Author: jkalbhenn

app/models/timesheet.rb

@@ -67,7 +67,7 @@ def initialize(options = { })
     if !options[:sort].nil? && options[:sort].respond_to?(:to_sym) && ValidSortOptions.keys.include?(options[:sort].to_sym)
       self.sort = options[:sort].to_sym
     else
-      self.sort = :project
+      self.sort = :users
     end
 
     self.date_from = options[:date_from] || Date.today.to_s