Build #1173; #1176; #1182; Continents translated

Build #1173
PHPBB3-11959
Notification list should trim users

Build #1176
[ticket/12037]
Fix hard-coded text in acp_inactive.html

Build #1182
[ticket/12042]
Add all language strings from PLUpload 2.0 to the language file

Continents translated into time zones

Accidentally pasted language files from root / mods away

However, there are still bugs includes:
PHPBB3-12031
Bug language Notification list should trim users

PHPBB3-12049
Plural bug language Plupload
Merge branch 'master' of https://github.com/wintstar/3.1-alpha-test-de