Blog post describing the changes in R117

EmrEtlRunner:

• add support to the spot market for core instances (#3487)
• bump to 0.36.0 (#4143)

Scala Common Enrich:

• bump referer-parser to 0.3.1 (#4135)
• add anonymization for IPv6 (#4222)
• add additional event fingerprint hashing methods (#4226)
• bump to 0.38.0 (#4136)

Beam Enrich:

• bump scala-common-enrich to 0.38.0 (#4137)
• fix unit tests failing after update of MaxMind database (#4230)
• fix docker deployment authorization (#4231)
• bump to 0.4.0 (#4138)

Stream Enrich:

• bump scala-common-enrich to 0.38.0 (#4139)
• bump to 0.22.0 (#4140)

Spark Enrich:

• bump scala-common-enrich to 0.38.0 (#4141)
• use hadoop-lzo 0.4.20 from Snowplow Bintray maven (#4238)
• bump to 1.19.0 (#4142)

Common:

• change Travis distribution to Trusty (#4214)
• publish docker images for scala-stream-collector, beam-enrich and stream-enrich to DockerHub (#4237)

Scala Stream Collector:

• allow users to disable the default redirect endpoint (#4211)
• bump Scala version to 2.11.12 (#4206)
• bump akka-http to 10.1.10 (#4185)
• add support for TLS port binding and certificate (#4085)
• remove duplicate section in example hocon config file (#4210)
• bump to 0.17.0 (#4208)