Merge pull request #4 from bitbar/dependabot/maven/jackson.version-2.9.9

Bump jackson.version from 2.6.0 to 2.9.9

Author: Sakari Rautiainen

pom.xml

@@ -16,7 +16,7 @@
  <properties>
  <java.version>1.8</java.version>
  <testdroid-api.version>2.75</testdroid-api.version>
- <jackson.version>2.6.0</jackson.version>
+ <jackson.version>2.9.9</jackson.version>
  <spring.version>4.3.8.RELEASE</spring.version>
  <cli.version>1.3.1</cli.version>
  <jsch.version>0.1.54</jsch.version>