[FEATURE] More args, more prints

*Add option to run Main with no args (only writes categories)
*Move time printing to Main
*Add some number checking for itemsPerPage and maxPages
*Add more prints to Initializer and Main for debugging
*Fix grabbing 1 more page than necessary for products
*Modify some prints to accurately reflect what they're printing
Merge branch 'master' of https://github.com/johndu9/RandomEgg