begin rails 4 support changes
Unqualify table name before looking up columns. Was causing column definitions to be constantly called
Fixes deprecation warning in rails 4.
Add SQL Server database tasks
Remove charset and collation tasks
Merge pull request #1 from arthrex/feature/database-tasks

Add SQL Server database tasks
Add ability to switch to single user mode for closing connections when dropping
Merge pull request #2 from arthrex/feature/close-connections

Feature/close connections
Merge remote-tracking branch 'arthrex/master'

Conflicts:
	VERSION
	lib/active_record/connection_adapters/sqlserver/schema_statements.rb
	lib/active_record/connection_adapters/sqlserver_adapter.rb