fallback to entry contents when entry description is not available
fallback to subscription title whenever no subscriptions were found for feed.tag
travis ci: updated curl command
removed SlicedResources
deprecated classes of old api
Merge branch 'master' into api-v2

Conflicts:
	src/main/java/myreader/service/search/SolrSubscriptionFields.java
	src/main/java/myreader/service/subscriptionentry/SubscriptionEntrySearchQuery.java
	src/main/resources/solr/core1/conf/schema.xml
fixed incompatibilities in v1 introduced by v2
added oauth2 implicit grant to api v2