Added support for embedded solr server in local development environment.

- If project is build with maven profile 'dev' then embedded solr server is used for searching.
Merge pull request #2 from Opetushallitus/solr_test

Added support for embedded solr server in local development environment.
OVT-8875, OVT-8669: Estetään, ettei samalle päivälle tule kahta nimenmuutosta.
Merge branch 'develop' into master