New image retrieval based on html rendering instead of jsoup
Removed unused imports
Refactoring of getWebsiteSnapshot method
Fixed bug occurring when a URL was too long
Bug fixing with non-existent urls
Some style change, bug with deletion from a filter list is now solved.
Bug fixing on add from filtered list
Bettered thumbnail system. Added timeout for page which will load endlessly
Added useragent to jsoup to prevent status 403 on certain pages