#791: load_logic.php, initialize local variable 'flag_utf8'
#791: load_logic.php, validate 'datalist_support' for 'UTF-8'
#791: load_logic.php, validate 'model_type', 'dataset_type' for 'UTF-8'
#791: load_logic.php, escape single quotes
#791: load_logic.php, validate 'model_type', 'dataset_type' for 'UTF-8'
#791: load_logic.php, validate 'model_type' for 'UTF-8'
#791: load_logic.php, add local arrays
#791: load_logic.php, add local array
#791: load_logic.php, minor indentation
#791: load_logic.php, change 'flag_utf8' -> 'flag_validator'
#791: load_logic.php, change array prefix 'svm_' -> 'arr_'
#791: load_logic.php, validate 'session_type'
#791: load_logic.php, validate 'training' session type
#791: load_logic.php, add validation error messages
#791: load_logic.php, add validation 'analysis' session
#791: load_logic.php, remove unnecessary validation in 'analysis' session
#791: load_logic.php, add error print message
#791: load_logic.php, remove unnecessary single quote
#791: load_logic.php, add 'flag_validator' boolean comparison
#791: load_logic.php, remove unnecessary 'flag_validator = false;'