config now has an optioncreator property that will allow another module to select how to prompt for a property
resolutions and archive options have been added to config file for sorting functionality
download.py no longer requires progressbar.py, it now contains a class that accepts another class as a parameter, this may be useful later when adding different ways of interaction
With --thread a signle thread ID or thread URL can be entered.
If thread is a URL, it will download it.
If thread is an ID, a category must also be set.
Configuration Settings can now be changed with the -e command line argument
execution of 4grab has been moved to 4grab.py, but should also still work with download.py
