Simple-manga-downloader

New
- down -n/--name flag, downloads the given manga using a custom name
- if a mangadex chapter has no chapter number the downloader will ask for one

Changes
- divided get\_chapters() into 2 methods (get\_main() and get\_chapters()) so that the downloader first prints what manga it's working on and then actually does the work (this will allow better handling of edge cases like the mangadex one listed above)
- added \_\_len\_\_() and \_\_bool\_\_() to manga classes
- added manganelo.com url support for the mangakakalot module

Fixes
- another heavenmanga base url change

Changes
- selected chapters are now checked in a sorted order

Fixes
- mangadex get_id crash when link did not end with a slash
- delayed chapters being included in the "to download" summary
- crash if trying to download multiple chapters for a manga

New
- covers, a new config setting that allows to download the covers for the manga, defaults to false
- conf -c/--covers flag to toggle the cover option
- after download lists what chapters have failed/succeeded
- invalid input in mangadex multiple groups selection will now skip the chapter instead of forcing a choice

Changes
- every module now uses request sessions
- changed get_handler() into a decorator
- modules now use the new exception handler decorator
- moved decorators into a separate file
- conf -c/--clear-tracked had the short flag changed to -t
- config parser now falls back to defaults if setting is missing
- changed the download chunk size
- output changes
- down and update mode now have the same order of action
- a lot of code changes/clean-up

Fixes
- heavenmanga switched to cfscrape and url changed
- conf -r index errors
- default download path when using custom config
- html entities in group names

Changes
- new get_handler() function that handles all request exceptions, meaning all site modules don't have to catch them and can just raise them when needed
- shorter import statements

Fixes
- fixed the mangatown_com module continuing to look for chapter pages even though one was not working, now raises a exception and stops the loop as expected

Fixes
- requests.ConnectionError crash fix

New
- added template module to git repository
- down -e/--exclude flag that will exclude given chapters from being downloaded
- mangakakalot.com module

Changes
- mangadex module will now show all groups for a chapter (Group A | Group B | Group C)
- down -r and -s flags now will decline non-number input
- removed the Manga.ch_info list, now Manga.chapters gets edited
- small changes to the filtering functions

Fixes
- manga that only has 1 chapter with chapter number 0 will no longer ignore selection
- fixed images saving as .None when imghdr.what() did not find the file type, the response header will be used in that case
- heavenmanga_org module exception
- file extension fix