including data_types and tools tests for common
removing network_viewer_test
Merge pull request #62 from ustulation/MAID-434-Include_data_types_test

including data_types and tools tests for common
Merge branch 'next' of git://github.com/maidsafe/MaidSafe-Common into MAID-390-cereal_integration_common
bootstrap_file_tool was left as it was not searchable in my IDE :( Had to do a file system search to do this.