[ticket/9725] Create an Azure SQL compatible Schema

Two problems were encountered when installing on AzureSQL:
-Azure SQL does not support the ON clause of T-SQL
-Azure SQL requries a clustered index AKA primary key on all tables

The fix is makeshift; it introduces questionable primary indices, which should be replaced with auto--increment columns.

PHPBB3-9725
[ticket/9725] Add dummy indexes for Azure

SQL Azure requires a primary AKA clustered key on every table.
This adds a dummy INT column to act as key,
avoiding possible duplicate entries.
so that these columns can support bigger (speak: huge) tables

PHPBB3-9725
[ticket/12276] Expand core.memberlist_view_profile

Expand core.memberlist_view_profile to include zebra states

PHPBB3-12276
[ticket/11959] Use plurals for the language strings.

PHPBB3-11959
[ticket/11959] Fix the NOTIFICATION_QUOTE_TRIMMED text.

PHPBB3-11959
[ticket/11959] Use the plurals system for the untrimmed language strings.

PHPBB3-11959
[ticket/11959] List the last user with "and" instead of a comma.

PHPBB3-11959
[ticket/11959] Add samples for the untrimmed strings.

PHPBB3-11959
[ticket/11959] Add function to create a string list.

PHPBB3-11959
[ticket/11959] Simplify how the users are trimmed.

PHPBB3-11959
[ticket/11959] Rename phpbb_gen_string_list() & fix incorrect var name.

PHPBB3-11959
[ticket/11959] Remove use of plurals and make it possible to use Oxford comma.

PHPBB3-11959
[ticket/11959] Add unit tests.

PHPBB3-11959
[ticket/12300] Revert topic title links back to default behavior

PHPBB3-12300
[ticket/12300] Make topic icon links clickable to newest unread posts

PHPBB3-12300
[ticket/12300] Rename new class for row icon links

PHPBB3-12300
[ticket/12300] Make all topic row icons clickable

Forum list icons link to first page of forum
UCP subscribed forums icons link to first page of forum
MCP Forum page topic icons link to first (or first unread) post
PM Icons link to the message

PHPBB3-12300
[ticket/12300] Fix alignment of clickable icons

PHPBB3-12300
[ticket/12300] Fix broken link to last post in topic subscriptions list

PHPBB3-12300
[ticket/12314] Workaround HHVM SPL autoloader sometimes using leading backslash

PHPBB3-12314