Remove unused variable

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4853 560a3889-bb33-0410-9f33-43a8a102dc09
Fix sql error(2007) Malformed packet, happening on MariaDB-versions of libmysql. Prefer MySQL 5.6.21 versions now. See http://www.heidisql.com/forum.php?t=13454

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4854 560a3889-bb33-0410-9f33-43a8a102dc09
Sort columns by attnum. Fixes wrong order of column names in data grid. See http://www.heidisql.com/forum.php?t=16747

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4855 560a3889-bb33-0410-9f33-43a8a102dc09
Allow applying CURRENT_TIMESTAMP to DATETIME columns. See http://www.heidisql.com/forum.php?t=16715

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4856 560a3889-bb33-0410-9f33-43a8a102dc09
Fix detection of DEFAULT value in CREATE TABLE code of MS SQL tables, which is wrapped in parentheses. See http://www.heidisql.com/forum.php?t=16748

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4857 560a3889-bb33-0410-9f33-43a8a102dc09