The validator handler can now pass unknown arguments to the project specific handler.
Projects that have there own validator need to implement the validate_handler_init() function and handle project specific arguments there. They also need to supply a validate_handler_usage() function that printf()'s a description of the custom options. For examples see sample_substr_validator.cpp or script_validator.cpp
The validator test harness was also adopted to use this new functions.
This brings the implementation of the validator framework on the same level as the assimilator framework where similar changes where made in 0038d275c and dd004404a.
David Anderson