Merge pull request #11 from tadaskay/master

Add readme section about env zookeeper.standalone.enabled
Update Axion plugin
Fix [#12] - Get all defined Spring profiles
Update of micro-reps to v0.7.1
Closing TestingServer to avoid BindException.
Safe Navigation Operator to avoid NPE
Update of stub-runner-spring to v0.2.1
CHANGELOG update
Transform all groovy modules dependencies to groovy-all

As a workaround for duplicated Groovy jars
Upgrade Gradle wrapper to 2.2
Fix [#13] - A lot of errors and warnings in tests
this keyword removed
Redundant logger transformation
Initialising Spring context only once
release version: 0.5.1
Using Shared instead of static field.