MINOR: Update dependencies for 1.0.0 part 2

There have been a few bug fix releases since
the previous update.

Author: Andras Beni <andrasbeni@cloudera.com>

Reviewers: Ismael Juma <ismael@juma.me.uk>

Closes #3791 from andrasbeni/dependency-upgrade

gradle/dependencies.gradle

@@ -50,10 +50,10 @@ versions += [
   apacheda: "1.0.0",
   apacheds: "2.0.0-M24",
   argparse4j: "0.7.0",
-  bcpkix: "1.57",
+  bcpkix: "1.58",
   easymock: "3.4",
   jackson: "2.8.5",
-  jetty: "9.2.15.v20160210",
+  jetty: "9.2.22.v20170606",
   jersey: "2.25.1",
   jmh: "1.19",
   log4j: "1.2.17",
@@ -66,8 +66,8 @@ versions += [
   powermock: "1.6.4",
   reflections: "0.9.11",
   rocksDB: "5.3.6",
-  scalatest: "3.0.3",
-  scoverage: "1.3.0",
+  scalatest: "3.0.4",
+  scoverage: "1.3.1",
   slf4j: "1.7.25",
   snappy: "1.1.4",
   zkclient: "0.10",