AddNewEntry will add a new user to the in memory AnEntry table in memory.

Exists return true if the file, specified by 'name', exists.

Fopen opens a file with a syntax similar to C fopen.

LoadFile will read in the .htaccess file specified by 'fn'.

SaveFile will write out the current in memory auth info.

AnEntry is used to store the entries from the .htaccess file in meory while we work on them.