adding db truncate script
Merge branch 'master' of github.com:backmeup/themis-service
Merge branch 'master' of github.com:backmeup/themis-service
unifying httpclient versions used within all subprojects to prevent
java.lang.NoSuchFieldError: INSTANCE org.apache.http.impl.client.HttpClientBuilder.build(HttpClientBuilder.java:769) due to outdated version on classloader