add g_lang method that scans the language sentence to file of langs directory, and update the system_hash_to_str method name
add the comment for installing method
improve the generating method of installing data
change file name from data2.rb to proc.rb
change method name from _random_string to _random
add the file_num field for file system to enhance the security for the user access of client
move file location about the tag assets
update assets file name
alter an error comment of js