added delete dic endpoint

services/spelling/app.coffee

@@ -19,6 +19,7 @@ HealthCheckController = require("./app/js/HealthCheckController")
 server.use bodyParser.json(limit: "2mb")
 server.use metrics.http.monitor(logger)
 
+server.del "/user/:user_id", SpellingAPIController.deleteDic
 server.post "/user/:user_id/check", SpellingAPIController.check
 server.post "/user/:user_id/learn", SpellingAPIController.learn
 server.get "/status", (req, res)->

services/spelling/app/coffee/LearnedWordsManager.coffee

@@ -29,6 +29,9 @@ module.exports = LearnedWordsManager =
 			mongoCache.set(user_token, words)
 			callback null, words
 
+	deleteUsersLearnedWords: (user_token, callback =(error)->)->
+		db.spellingPreferences.remove token: user_token, callback
+
 
 [
 	'learnWord',

services/spelling/app/coffee/SpellingAPIController.coffee

@@ -21,3 +21,9 @@ module.exports = SpellingAPIController =
 			next()
 
 
+	deleteDic: (req, res, next)->
+		logger.log token: req?.params?.user_id, word: req?.body?.word, "deleting user dictionary"
+		SpellingAPIManager.deleteDic req.params.user_id, (error) ->
+			return next(error) if error?
+			res.sendStatus(204)
+

services/spelling/app/coffee/SpellingAPIManager.coffee

@@ -46,4 +46,6 @@ module.exports = SpellingAPIManager =
 
 		LearnedWordsManager.learnWord token, request.word, callback
 
+	deleteDic: (token, callback)->
+		LearnedWordsManager.deleteUsersLearnedWords token, callback
 

services/spelling/test/unit/coffee/LearnedWordsManagerTests.coffee

@@ -83,4 +83,15 @@ describe "LearnedWordsManager", ->
 			@LearnedWordsManager.learnWord @token, @word, =>
 				@cache.del.calledWith(@token).should.equal true
 				done()
-	
+
+
+	describe "deleteUsersLearnedWords", ->
+		beforeEach ->
+			@db.spellingPreferences.delete = sinon.stub().callsArgWith(1)
+
+
+		it "should get the word list for the given user", (done)->
+			@LearnedWordsManager.deleteUsersLearnedWords @token, =>
+				@db.spellingPreferences.delete.calledWith(token: @token).should.equal true
+				done()
+