added example archiver for ExamplePlugin and command for generating archiver
fixed remaining typos
fixed last typo
update geoip-api-php to v1.14
IPv6 support for LocationProvider
with tests
resolves #3581
fix IPv6 which can be mapped to IPv4
updated expected testcase results:
Because of IPv6 support, now two previously "unknown" visits are counted for US visits.
updated expected test results (to the processed output, acutally, but it looks fine)
Added videa.seznam.cz (seznam video)
Merge pull request #6596 from piwik/translationupdates

[automatic translation update] Updated 121 strings in 19 languages (cs, da, de, fa, it, ja, pl, sv, pt, hi, fi, ru, sr, tr, ro, fr, nl, el, es)
Fixes #6595 Test of the minimum PHP version
refs #6317 display instructions before upgrading.

We will by default always run a --dry-run before actually upgrading
and then ask the user for confirmation to execute those updates.
Alternatively a user can use a parameter --yes to avoid asking
for confirmation.
refs #6508 add some comments
refs #6508 started refactoring the code, created two new objects: ArchiveInvalidator to include the API CoreAdminHome.invalidateArchivedReports and InvalidatedReports to store the info of which report was invalidated
refs #6508 log when invalid dates were found in the input
Submodules
Revert "Fixes #6595 Test of the minimum PHP version"

This reverts commit 6c1a90ff497bf4a6a23f55317f90d9749c6576fe.
refs #6508 some refactoring and renaming
fixes  #6598 Add sites to be invalidated when the archiving failed to make sure we try to reprocess again later
refs #6508 Now we will purge only the right  monthly archive_numeric table and also only for the websites IDs that were invalidated