Fix default scalaVersion to 2.10.6 (#869)
Fix default scalaVersion to 2.10.6 (#869)


fixes https://github.com/spark-notebook/spark-notebook/commit/81e8609393972b85c21452b0bd76bee0c69ba2d2
improves https://github.com/spark-notebook/spark-notebook/commit/3cb5ce14e47a9cd1f2ba786d2e04382a269b4fc1#diff-0ecdbc5a001d52fb34f5eafb7cd1aaa6R42

andypetrella/spark-notebook,maasg/spark-notebook,spark-notebook/spark-notebook,maasg/spark-notebook,spark-notebook/spark-notebook,maasg/spark-notebook,spark-notebook/spark-notebook,spark-notebook/spark-notebook,maasg/spark-notebook,andypetrella/spark-notebook,andypetrella/spark-notebook,andypetrella/spark-notebook