Removed documentation on Elasticsearch.

Elasticsearch is no longer planned for debshots.
Full-text search using PostgreSQL is sufficient.

README.rdoc

@@ -107,76 +107,3 @@ TODO
 
 /rss
 * Return an RSS feed of new uploads of screenshots
-
-
-== Using Xapian
-
-Ruby gem "xapian" does not exist. Debian only has bindings for Ruby 1.9.x.
-Xapian may be lightweight and nice but is too much hassle.
-
-
-
-== Elasticsearch
-
-= Install
-
-Get it from https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.6.deb
-
-Also: apt-get install openjdk-7-jre-headless
-
-= Configure
-
-Edit /etc/elasticsearch/elasticsearch.yml for single-server usage:
-- cluster.name: ...
-- node.name: ...
-- index.number_of_shards: 1
-- index.number_of_replicas: 0
-- discovery.zen.ping.multicast.enabled: false
-
-= Add useful plugins
-
-/usr/share/elasticsearch/bin/plugin -install mobz/elasticsearch-head
-URL: serve:9200/_plugin/head
-
-/usr/share/elasticsearch/bin/plugin -install lukas-vlcek/bigdesk
-URL: serve:9200/_plugin/bigdesk
-
-= Install River (that feeds PostgreSQL data into ElasticSearch):
-
-Get the PostgreSQL ODBC driver from
-wget http://jdbc.postgresql.org/download/postgresql-9.3-1100.jdbc41.jar
-(according to http://jdbc.postgresql.org/download.html)
-
-cp postgresql-9.3-1100.jdbc41.jar /usr/share/elasticsearch/plugins/river-jdbc
-
-/usr/share/elasticsearch/bin/plugin -install river-jdbc -url http://bit.ly/1iovWV9
-(according to https://github.com/jprante/elasticsearch-river-jdbc)
-
-Fix permissions after plugin installation:
-chown -R elasticsearch:elasticsearch /usr/share/elasticsearch/plugins
-
-Restart Elasticsearch.
-
-curl -XPUT 'localhost:9200/_river/debshots_jdbc_river/_meta' -d '{
-     "type" : "jdbc",
-     "jdbc" : {
-         "driver" : "org.postgresql.Driver",
-         "url" : "jdbc:postgresql://localhost:5432/debshots",
-         "user" : "debshots",
-         "password" : "shootme",
-         "sql" : "select id as _id,name,description from packages",
-         "strategy" : "simple",
-         "poll" : "5m"
- },
-     "index" : {
-         "index" : "debshots",
-         "type" : "jdbc"
-     }
- }'
-
-Should return:
-
-{"ok":true,"_index":"_river","_type":"my_jdbc_river","_id":"_meta","_version":1}
-
-
-TODO: Tire versus Rivers