update view folder controller to include new user model
update findparentfolder to take in scope.parentfolder
update finddoc, findsubfolder, and findparentfolder to only render a view of that model if current user is the owner of that model
add user denied controller and permission denied view, update view folder methods to direct to permission denied view if current user does not own the folder/doc
update findsubfolder and findparentfolder methods in view folder controller to direct to permission denied view if current user does not own the folder/doc
remove whitespace