rename saltSource param in PasswordEncoder interfce to salt. It was already called salt in subclasses, and is in fact supposed to be the salt, not the source for the salt, although depending on the implementation it may still be treated as the latter.
add unit tests for PasswordEncoder implementations.
remove ignore password case and ignore username case flags and handling from DaoAuthenticationProvider.
remove requirement described in JavaDoc for AuthenticationDao that it ignore case when returning a user by username. Implementations may still do so if configured as such.
modify JdbcDaoTests to test for role prefix functionality
fix glitch in JdbcDaoImpl
modify Eclipse classpath so HSQL lib is loaded, so unit tests can run in Eclipse as well.