Errors in SQL/mssql.initial.sql

[Gliese]

SQL/mssql.initial.sql contains a syntax error (extra comma at the end of line 205 CONSTRAINT [DF_users_created] DEFAULT (getdate()) FOR [created]), and structure discrepancies with mysql.initial.sql. In particular, the field preferences in table users is wrongly defined as non nullable and no default value is defined for html_signature in table identities, which triggers errors.
Suggested patch in attachment.

[alec]

Fixed in [7c6bc1a1].