made dev mode perform_caching & log_level overridable via env vars

Author: Oaphi

config/environments/development.rb

@@ -14,11 +14,13 @@
 
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
-  config.action_controller.perform_caching = false
+  config.action_controller.perform_caching = ActiveRecord::Type::Boolean.new.cast(ENV['PERFORM_CACHING']) || false
 
   # Enable server timing
   config.server_timing = true
 
+  config.log_level = ENV['LOG_LEVEL'] || :info
+
   # Set the cache store to the redis that was configured in the database.yml
   processed = ERB.new(File.read(Rails.root.join('config', 'database.yml'))).result(binding)
   redis_config = YAML.safe_load(processed, permitted_classes: [], permitted_symbols: [], aliases: true)["redis_#{Rails.env}"]