fix hardcoded timezone test

This test was dependent on a test having up to ~50ms of latency, which
is not necessarily guaranteed. This allows it to differ up to the actual
elapsed query time.
Merge pull request #2617 from mbroadst/fix-timestamp-test

fix hardcoded timezone test
refactor update/insert query to support additional features

  - added logic to handle corner cases regarding autoIncrement values
  - added support for OUTPUT variables (mssql)
  - added support for identity wrapping (related to point 1)
Merge pull request #2609 from mbroadst/refactor-update-insert-query

refactor update/insert query to support additional features
Initial setup for ms sql server support
Add showTablesQuery / dropTableQuery
Add first steps for createTableQuery
fix dropTableQuery
updates to mssql dialect
Removed super verbose logging
"query-interface describeTable" test now passes
All but the last test pass in Query Interface
Started refactor of mssql dialect
QueryInterface passes with refactor
More separation and a template file for abstract
Destroyed the Select statement, now rebuilding
Fixed bug in lib/model.js deleting clauses
fixed identity column with Insert
Partial fix for where clause, still issues
Alias Test passes