[ticket/11368] Fix background color for PM report rows by using accessing var.

PHPBB3-11368
[ticket/6723] Show info that message has been deleted before delivery

If the message has been deleted before the delivery it will still show in
the message history, although with an empty message. This patch will
change that behavior to showing the info that it has been deleted before
it was delivered in red letters. The red letters ensure that users won't
mistake the info for the actual message.

PHPBB3-6723
Merge remote-tracking branch 'remotes/bantu/ticket/11368' into develop-olympus

# By Andreas Fischer
# Via Andreas Fischer
* remotes/bantu/ticket/11368:
  [ticket/11368] Fix background color for PM report rows by using accessing var.
Merge remote-tracking branch 'remotes/marc/ticket/6723' into develop-olympus

# By Marc Alexander
# Via Marc Alexander
* remotes/marc/ticket/6723:
  [ticket/6723] Show info that message has been deleted before delivery
[ticket/11358] Fixed the code according to coding guidlines.

Added proper indentation and new line after break in switch
statement.

PHPBB3-11358
[ticket/11358] Removed all trailing white spaces.

Removed all trailing white spaces with new lines.

PHPBB3-11358
Merge branch 'ticket/11358' into develop-olympus

* ticket/11358:
  [ticket/11358] Removed all trailing white spaces.
  [ticket/11358] Fixed the code according to coding guidlines.
[ticket/11493] add check for phpBB Debug in functional tests

PHPBB3-11493
[ticket/11493] add checks for Notice and Warning

PHPBB3-11493
Merge remote-tracking branch 'dhruvgoel92/ticket/11493' into develop-olympus

* dhruvgoel92/ticket/11493:
  [ticket/11493] add checks for Notice and Warning
  [ticket/11493] add check for phpBB Debug in functional tests