Note about maintainers.
Maintainer link.
Created ActiveRecord::Tasks::SQLServerDatabaseTasks class
which addresses compatibility issues with Rails v4.1.8.

This is not yet a complete implementation of the ActiveRecord::Tasks
interface.

Adds test cases in test/cases/tasks/sqlserver_rake_test_sqlserver.rb

requires the new sqlserver_database_tasks from
lib/activerecord-sqlserver-adapter.rb

Updates to test/cases/(associations_test_sqlserver &
resolver_test_sqlserver) to address failing tests.

Added tags to .gitignore so ctags index files won't be checked in.

Fixed typo in RUNNING_UNIT_TESTS.md.
Refactor following Ken's input.

Moved tags out of .gitignore.

Moved SQLServerDatabaseTasks under the active_record sub-directory
where it belongs.

Updated locations where sqlserver_database_tasks was being required
to use the new path.
Merge remote-tracking branch 'bigtunacan/master'