Add support for Agricraft

src/coffee/constants.coffee

@@ -15,6 +15,7 @@ exports.DefaultMods =
     minecraft:             { defaultVersion: '1.7.10' } # Minecraft must be first
 
     advanced_solar_panels: { defaultVersion: '3.5.1' }
+    agricraft:             { defaultVersion: '1.4.6' }
     applied_energistics_2: { defaultVersion: 'rv1-stable-1' }
     big_reactors:          { defaultVersion: '0.4.2A2' }
     buildcraft:            { defaultVersion: '6.4.6' }

src/coffee/models/crafting/craftsman.coffee

@@ -95,7 +95,7 @@ module.exports = class Craftsman extends BaseModel
         else if not @_graphBuilder.rootNode.valid
             @stage = @STAGE.INVALID
             @stageCount = 0
-            logger.warn => "Craftsman could not complete a crafting plan."
+            logger.warning => "Craftsman could not complete a crafting plan."
         else if not @_planBuilder?
             logger.debug => "Craftsman finished computing graph:\n#{@_graphBuilder.rootNode}"
             @_planBuilder = new PlanBuilder @_graphBuilder.rootNode, @_modPack, have:@_have, want:@_want