JournalWorkflowStepRepository added
ojs:install fixed 
admin must have super_editor and editor roles
created new bundle - search bundle #62
article submission page improvements
search bundle routing #62
Elasticsearch configurations for searchbundle #62

- Elastica extension added via fos_elastica  
- configuration files separated
- SearchCommand updated
User entity updated.

added new fields
- firstname
- lastname
fos_elastica configured