Set is_jmx in solr template (#791)

Co-authored-by: Pablo Baeyens <pablo.baeyens@datadoghq.com>

Author: albertvaka

recipes/solr.rb

@@ -1,7 +1,7 @@
 include_recipe 'datadog::dd-agent'
 
 # Monitor solr
-# @see https://github.com/DataDog/integrations-core/blob/master/solr/conf.yaml.example Solr Example
+# @see https://github.com/DataDog/integrations-core/blob/master/solr/datadog_checks/solr/data/conf.yaml.example Solr Example
 # @example
 #
 

templates/default/solr.yaml.erb

@@ -5,6 +5,8 @@
 # List of metrics to be collected by the integration
 # Read http://docs.datadoghq.com/integrations/java/ to learn how to customize it
 init_config:
+  is_jmx: true
+  collect_default_metrics: true
   conf:
     - include:
         type: searcher