sqlsrv 7.x-1.0-alpha1

First alpha release of the SQL Server module for Drupal 7.

Changes since the initial commit:

• Temporary workaround for #796082: don't rollback the table creation if an index fails to create.
• Add CONCAT() and IF() missing from the replacement list.
• Update SelectQuery to the new API: synchronize __toString() and make addJoin() more robust to API changes.
• Make CONCAT() return a nvarchar(4000), as returning or casting a nvarchar(max) is not supported.
• Workaround PDO weirdness with escaping characters.
• #848060 by myself: update the driver to comply with API changes from both Drupal and Microsoft.
  • Update the constructor to the new DSN string of CTP 2.0
  • Rework the MergeQuery implement to map with #715108, this will probably change again to a proper MERGE query with #844186
  • Reimplement schema support thanks to #302327
  • Update the SchemaQuery implementation to take into account several changes (most notably comment support)
  • Make the few regexps more robust
  • Make the queries on binary fields more robust
  • Update the use of the prefixing API, following #195416
  • Remove additional sanitization for JOINs, not necessary since #769554
• #882182 by myself: implement the new DatabaseConnection::version() method.
• #889068 by myself: switch from non-clustered to clustered primary keys to support SQL Azure.