Re-adding the oss-sonatype tag to the pom file so that releases can be performed.
Re-adding the oss-sonatype tag to the pom file so that releases can be performed.

caseykramer/libphonenumber-csharp,caseykramer/libphonenumber-csharp,caseykramer/libphonenumber-csharp,caseykramer/libphonenumber-csharp,caseykramer/libphonenumber-csharp,caseykramer/libphonenumber-csharp,caseykramer/libphonenumber-csharp