Allow download batch of pages by category

[emijrp]

I'm thinking on adding support for something like this:

python dumpgenerator.py --api=http://domain.com/w/api.php --category=Category:Name

Or better:

python dumpgenerator.py http://domain.com/wiki/Category:Name

[emijrp]

Allow to download single pages (with images) too? --page=

[nemobis]

Individual pages would make most sense if/when api.php export is used.

[nemobis]

This would be possible with wikitools generators from category.