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

PHPBB3-12314
[ticket/12317] Do not repeat SQL query in notification_submit_post_base.

PHPBB3-12317
[ticket/12317] Fix notification tests for DBMSes returning integers as int.

PHPBB3-12317
[ticket/12317] Cast string to int to refix DBMSes not using int for integers.

PHPBB3-12317
Merge pull request #2194 from bantu/ticket/12317

[ticket/12317] Fix notification tests for DBMS drivers using int for integers ;-)
Merge pull request #2192 from bantu/ticket/12314

[ticket/12314] Workaround HHVM SPL autoloader sometimes using leading ba...
Merge branch 'develop-olympus' into develop-ascraeus

* develop-olympus:
  [ticket/9725] Code sniffer fixes
  [ticket/9725] Do not use deprecated views to remove default constraints
  [ticket/9725] Move primary key creation to the correct location
  [ticket/9725] Remove trailing spaces from MSSQL schema
  [ticket/9725] Create MSSQL primary keys if none exist
  [ticket/9725] Remove explicit filegroup designations
  [ticket/9725] Fetch Azure db stats from proper table
  [ticket/9725] Add dummy indexes for Azure
  [ticket/9725] Create an Azure SQL compatible Schema

Conflicts:
	phpBB/install/schemas/mssql_schema.sql