Added tasks controller, spec, JS, apitesthelper

Had an issue with calling render_views in the specs to render the
jbuilder json templates and also getting the devise sign_in method to
work, ended up adding a helper to add the username/password for a user

app/views/api/v1/tasks/update.json.jbuilder

@@ -0,0 +1,3 @@
+json.tasks [@tasks.map{|x| x[:record]}] do |task|
+  json.array! task
+end