Bump freemarker from 2.3.28 to 2.3.29 (#128)

Bumps freemarker from 2.3.28 to 2.3.29.

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

build.gradle

@@ -64,7 +64,7 @@ dependencies {
   compile group: 'com.google.guava', name: 'guava', version: '23.0'
   compile group: 'joda-time', name: 'joda-time', version: '2.10.3'
   compile group: 'commons-io', name: 'commons-io', version: '2.6'
-  compile group: 'org.freemarker', name: 'freemarker', version: '2.3.28'
+  compile group: 'org.freemarker', name: 'freemarker', version: '2.3.29'
 
   testCompile group: 'junit', name: 'junit', version: '4.12'
   testCompile group: 'org.hamcrest', name: 'hamcrest-library', version: '2.1'