Remove liquibase references
Add ElasticSearch service
Move ElasticSearch service to search module
Move Study indexers to study package
Add study indexer
Index studies
Don't use inheritance for indexers
Merge pull request #19 from obiba/elasticsearch

Setup Elasticsearch
Complete indexer
Use LocalDate instead of LocalDateTime for Authorisation.
Use YearMonth for DCE
Use Year for study
Merge pull request #20 from obiba/java.time

Java.time
Use UTF-8 by default
Replace Gson by Jackson
Add Timestamp to Study
Merge pull request #21 from obiba/jackson

Replace Gson by Jackson
Replace Guava by lambda
Add Http Error interceptor
Merge pull request #22 from obiba/http-interceptor

Http interceptor
Add @Timed
Add @Validated in order to use Bean Validation for methods
Refactor form server validation