MSSQL - rake db:migrate:reset can drop database

If i run the rake task `db:migrate:reset` i got the message

    ** Invoke db:migrate:reset (first_time)
    ** Invoke db:drop (first_time)
    ** Invoke db:load_config (first_time)
    ** Execute db:load_config
    ** Invoke rails_env (first_time)
    ** Execute rails_env
    ** Execute db:drop
    Couldn't drop EHSIGBDB_test_sm : #<ActiveRecord::StatementInvalid: ActiveRecord::JDBCError: Cannot drop database "EHSIGBDB_test_sm" because it is currently in use.: DROP DATABASE [EHSIGBDB_test_sm]>

I think it is the same problem like here http://jira.codehaus.org/browse/JRUBY-2912

With this patch in `lib/arjdbc/mssql/adapter.rb method drop_database(name)` the rake task run successfully.
review MSSQL date-time handling - no need for that customized quoting
... doing in essence the very same thing
MSSQ/Oracle test tweaks/notes
support running Postgres' tests with "INSERT RETURNING" configuration
test with INSERT_RETURNING=true and do nto allow failures for 4.0
re-build jar