Update composer.json
Update composer.json

add license, see #65
clarity-project/SolrBundle,andythorne/SolrBundle,floriansemm/SolrBundle,zquintana/SunSearchBundle,floriansemm/SolrBundle,frank-und-freunde/SolrBundle,drdk/SolrBundle,zquintana/SunSearchBundle,clarity-project/SolrBundle,cegeka/fd-solr-bundle,starsystemsindia/SolrBundle,drdk/SolrBundle