[fix] update Facebook service for simplified Facebook Feed import
[mod] save config about total count in parent controller
[fix] correct dribbble service class, at least until old API will stop working (close #12)
[mod] test and reactivate the Pinboard service class for public and private feeds
[fix] use correct timestamp value to create date information
[mod] test and adjust Reddit service class, fix #21
[mod] remove service classes that are related to disfunct sites and APIs
[merge] from develop + correct conflicts
[fix] test title and summary before position test
Merge branch 'development' into core/services
[fix] create variable for absolute date string
Merge branch 'core/services' into development
[mod] set automatically pubwich url when not defined before