WINNIPEG - MTS Allstream is providing free long distance calling to Japan for its residential and small business landline customers in Manitoba for the next two months.The company said Friday that it will apply the offer retroactively to March 11, so that customers who have made long distance calls to Japan following the earthquake will automatically receive a bill credit. The offer is set to expire on May 11, 2011."With the ongoing complexities of the devastation in Japan it's important that people are able to reach one another," said MTS president Kelvin Shepherd, in the announcement. "We hope that free...