Updated reporting to use reportingengine without openproject namespace

app/models/cost_query.rb

@@ -1,4 +1,4 @@
-require 'open_project/reporting_engine/report'
+require 'reporting_engine/report'
 
 class CostQuery < Report
   def_delegators :result, :real_costs

lib/open_project/reporting/engine.rb

@@ -1,5 +1,5 @@
 require 'openproject_costs'
-require 'openproject-reportingengine'
+require 'reporting_engine'
 
 module OpenProject::Reporting
   class Engine < ::Rails::Engine
@@ -38,7 +38,7 @@ module OpenProject::Reporting
     end
 
     config.to_prepare do
-      require_dependency 'open_project/reporting_engine/widget.rb'
+      require_dependency 'reporting_engine/widget.rb'
       require_dependency 'open_project/reporting/widgets/simple_table'
       require_dependency 'open_project/reporting/widgets/entry_table'
       require_dependency 'open_project/reporting/widgets/cost_types'

openproject-reporting.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   # FIXME
   # s.test_files = Dir["spec/**/*"]
 
-  s.add_dependency "openproject-reportingengine", "~> 0.0.1"
+  s.add_dependency "reportingengine", "~> 0.0.1"
   s.add_dependency "openproject_costs", "> 4.0.0"
 
   s.add_development_dependency "factory_girl_rails", "~> 4.0"