Merge pull request j0k3r#341 from j0k3r/fix/2.x-update-deps

[2.x] Update deps

Merge pull request j0k3r#313 from jtojnar/backports

Backport recent fixes

Merge pull request j0k3r#305 from jtojnar/date-nullable

ContentExtractor: Fix invalid argument type

Merge pull request j0k3r#301 from jtojnar/patch-1

Add ability to process prefetched content

fetchContent() now accepts an optional parameter, prefetchedContent, which
can contain the content of a page that was fetched before calling Graby.

If we take the example of Wallabag it gives the ability of sending the
content of a page (through a browser extension for example) without
making network calls to fetch the page.

Signed-off-by: Kevin Decherf <kevin@kdecherf.com>

Add ability to process prefetched content

fetchContent() now accepts an optional parameter, prefetchedContent, which
can contain the content of a page that was fetched before calling Graby.

If we take the example of Wallabag it gives the ability of sending the
content of a page (through a browser extension for example) without
making network calls to fetch the page.

Signed-off-by: Kevin Decherf <kevin@kdecherf.com>

Ensure `find_string` & `replace_string` size are equal

That validation is performed in `parseLines` so the size of them can't mismatch when merging configuration for example.
A warning log is raised in case of mismatch.

Ensure empty value from `site_config` are kept

For example, when user wants to replace a string with nothing, `replace_string:` will be used and shouldn't be skipped.
Also, adding more tests regarding previous PR.

Merge pull request j0k3r#276 from Kdecherf/fix/utm-query-2.x

Merge pull request j0k3r#270 from Kdecherf/fix/makeabsolute