fixed type in dependency string
fixed type in dependency string

According to [this page] (http://search.maven.org/#artifactdetails%7Ccom.databricks%7Cspark-avro_2.10%7C0.1%7Cjar) and build.sbt there is a typo in groupId.
databricks/spark-avro,tresata-opensource/spark-avro,mkanchwala/spark-avro,devfreesg/spark-avro,alexanderfield/spark-avro,databricks/spark-avro,marmbrus/spark-avro,devfreesg/spark-avro,liancheng/spark-avro,fvlankvelt/spark-avro,JDrit/spark-avro,CrazyJacky/spark-avro,CrazyJacky/spark-avro,fvlankvelt/spark-avro,marmbrus/spark-avro,nvoron23/spark-avro,tresata-opensource/spark-avro