[ticket/8785] Rebuilding posting_editor pm head + new language vars

PHPBB3-8785
[ticket/8785] Little spaces mistake

PHPBB3-8785
[ticket/8785] Scrollbar to Reciepients and BCC with max-height: 200px

PHPBB3-8785
[ticket/8785] Adds two <hr /> to seperate recipients and BCC

PHPBB3-8785
[ticket/8785] Adds a new optical improvement, new file and fixes html bugs

PHPBB3-8785
[ticket/8785] Adds blank lines at file end

PHPBB3-8785
[ticket/8785] <hr /> will only displayed when needed

PHPBB3-8785
[ticket/8785] pm_layout.html back to more standard code

PHPBB3-8785
[ticket/8785] Just one blank line

PHPBB3-8785
[ticket/8785] and again a fresh line

PHPBB3-8785
[ticket/8785] Fixed problem with add empty.png and travis will now pass

PHPBB3-8785
[ticket/12168] Move padding-top to ul.linklist li

PHPBB3-12168
[ticket/8785] Deletes additional add and add_bcc buttons

PHPBB3-8785
[ticket/8041] Merge item name into "Return to" string for better translations

PHPBB3-8041
[ticket/8041] Wrap forum name, topic title and pm folder name with quotes

PHPBB3-8041
[ticket/8041] Add space/tabs after => in array list

PHPBB3-8041
[ticket/12267] Replace $php_ext with $phpEx

PHPBB3-12267
Merge pull request #2115 from Elsensee/ticket/12267

[ticket/12267] Replace $php_ext with $phpEx

* Elsensee/ticket/12267:
  [ticket/12267] Replace $php_ext with $phpEx
Merge pull request #2113 from nickvergessen/ticket/8041

[ticket/8041] Merge item name into "Return to" string for better translations

* nickvergessen/ticket/8041:
  [ticket/8041] Add space/tabs after => in array list
  [ticket/8041] Wrap forum name, topic title and pm folder name with quotes
  [ticket/8041] Merge item name into "Return to" string for better translations
Merge pull request #2110 from nickvergessen/ticket/12168

[ticket/12168] Move padding-top to ul.linklist li

* nickvergessen/ticket/12168:
  [ticket/12168] Move padding-top to ul.linklist li