solved issue 191

191) open graph posts.
     add link to gift.open_graph_url
     link on image or open_graph_title
solved issue 192

192) System error when checking moved or deleted images. Error: "type: OAuthException, code: 190, error_subcode: 458, message: Error validating access token: The user has not authorized application 391393607629383. [HTTP 400]". More information in log.
     puts_exception: get_api_picture_url_facebook: fb_error_type    = OAuthException (String)
     puts_exception: get_api_picture_url_facebook: Koala::Facebook::ClientError
     puts_exception: get_api_picture_url_facebook: fb_error_code    = 190 (Fixnum)
     puts_exception: get_api_picture_url_facebook: fb_error_subcode = 458 (Fixnum)
     puts_exception: get_api_picture_url_facebook: fb_error_message = Error validating access token: The user has not authorized application 391393607629383. (String)
     puts_exception: get_api_picture_url_facebook: http_status      = 400 (Fixnum)
     puts_exception: get_api_picture_url_facebook: response_body    = {"error":{"message":"Error validating access token: The user has not authorized application 391393607629383.","type":"OAuthException","code":190,"error_subcode":458}}
     rescue in missing_api_picture_urls: Exception: type: OAuthException, code: 190, error_subcode: 458, message: Error validating access token: The user has not authorized application 391393607629383. [HTTP 400] (Koala::Facebook::AuthenticationError)
     rescue in missing_api_picture_urls: Backtrace: /home/jro/.rvm/gems/ruby-2.0.0-p481/gems/koala-1.10.1/lib/koala/api/graph_api.rb:503:in `block in graph_call'
     /home/jro/.rvm/gems/ruby-2.0.0-p481/gems/koala-1.10.1/lib/koala/api.rb:76:in `api'
     /home/jro/.rvm/gems/ruby-2.0.0-p481/gems/koala-1.10.1/lib/koala/api/graph_api.rb:501:in `graph_call'
     /home/jro/.rvm/gems/ruby-2.0.0-p481/gems/koala-1.10.1/lib/koala/api/graph_api.rb:56:in `get_object'
     /Disk-0/OLAP-hosting/Ruby/railsapps/gofreerev-fb/app/controllers/util_controller.rb:1389:in `get_api_picture_url_facebook'
     /Disk-0/OLAP-hosting/Ruby/railsapps/gofreerev-fb/app/controllers/util_controller.rb:1673:in `get_api_picture_url'
     /Disk-0/OLAP-hosting/Ruby/railsapps/gofreerev-fb/app/controllers/util_controller.rb:286:in `block in missing_api_picture_urls'
solved issue 187) read_stream request has been removed from app

187) Your app may break after 30 April 2015
     Some of the permissions below have not been approved for use by Facebook.
     was asking for read_stream priv. on localhost/laptop environment
     too many facebook conditions - drop read stream priv. as a workaround. - user must ajust privacy settings in fb
solved issue 162. added link /gifts?url=...&t5ext=... functionallity

162) Gofreerev share link url
     .../share/url=%{url}&text=%{text}&image_url=%{image_url}&close=#{boolean}
     could be like gifts/index page, but with an pre-filled field with image url
     normal params in share link urls (see js.share_gift.href_<provider>) are link and text. Normally not an image url
     should preview link and text before submit
     http://embedly.github.io/jquery-preview/demo/
     http://blog.embed.ly/post/45149972337/jquery-preview