[ja] Translated collections.rst into Japanese
[ja] follow up #665
Fixed translation
Merge pull request #666 from zuborawka/Translate-ja/core/libraries/collections.rst

[ja] Translated collections.rst into Japanese
Merge pull request #668 from suzuki/feature/ja-follow-665

[ja] follow up #665
Update docs to not be wrong.

Refs lighthouse #3950
Fix spelling/grammar in paragraph 3 of Dispatching Events

Small fix to the spelling/grammar in the 3rd paragraph of the dispatching events section just after the 2nd code example
Merge pull request #670 from fullybaked/patch-1

Fix spelling/grammar in paragraph 3 of Dispatching Events in Events System docs
Small grammar fix to Events System docs

Minor grammar update to the 3rd para of the Dispatching events section after the 2nd code example.
Merge pull request #671 from fullybaked/patch-1

Small grammar fix to Events System docs
use utf8 as default encoding
show how plugin vendors are imported
Merge pull request #673 from dereuromark/master-plugin-vendors

show how plugin vendors are imported
Merge pull request #672 from dereuromark/master-db-encoding

use utf8 as default encoding
[ja] follow up 57d46b9
[ja] follow up 4ce1350
fixed rst format

Title underline too short
Added info about deprecated constants