merging trunk changes with IIS-CDH-5.3.0 branch
#1306 introducing dummy field in DocumentId schema required to overcome https://issues.apache.org/jira/browse/PIG-3358 issue. Handling dummy filed in transformer pig scripts when it is required. Should be reverted as soon as PIG-3358 issue is fixed
removing avro-maven-plugin versioning conflicting with ${iis.avro.version}
fixing parent version to 1.0.1-CDH-5.3.0-SNAPSHOT
fixing version to 1.0.1-CDH-5.3.0-SNAPSHOT
dependencies cleanup: removing protocol buffer dependency from schemas, only avro should be supported
creating IIS-CDH-5.3.0 branch
introducing branches folder