[ticket/10854] sql server drop default constraint when dropping column

drops default columns with T-SQL before attempting drop column to
avoids sql exception.  This is a huge annoyance in UMIL scripts running
under sql server.
[ticket/11301] Explicitly cast str offset to int to prevent E_NOTICE on 5.4.

PHPBB3-11301
[ticket/11301] Guidelines: Add spaces in front and after the / operator.

PHPBB3-11301
Merge PR #1182 branch 'bantu/ticket/11301' into develop-olympus

# By Andreas Fischer
# Via Andreas Fischer
* bantu/ticket/11301:
  [ticket/11301] Guidelines: Add spaces in front and after the / operator.
  [ticket/11301] Explicitly cast str offset to int to prevent E_NOTICE on 5.4.
[ticket/11324] Add PHP 5.5 environment to travis and allow it to fail.

PHPBB3-11324
Merge PR #1191 branch 'bantu/ticket/11324' into develop-olympus

# By Andreas Fischer
# Via Andreas Fischer
* bantu/ticket/11324:
  [ticket/11324] Add PHP 5.5 environment to travis and allow it to fail.
[ticket/11323] Add tests for inclusion of defined variables

This adds 2 tests for the template engine. The test using
include_define_variable.html will test if a defined variable, which was
defined with another template variable, can be used to include a file.
The second test will do the same inside a loop using a loop variable.

PHPBB3-11323
Merge PR #1194 branch 'marc1706/ticket/11323' into develop-olympus

# By Marc Alexander
# Via Marc Alexander
* marc1706/ticket/11323:
  [ticket/11323] Add tests for inclusion of defined variables
Merge remote-tracking branch 'remotes/Sajaki/ticket/10854' into develop-olympus

# By Sajaki
# Via Sajaki
* remotes/Sajaki/ticket/10854:
  [ticket/10854] sql server drop default constraint when dropping column