Added two plugins: hackernews, magic 8ball

plugins/hackernews.lua

@@ -0,0 +1,24 @@
+do
+
+function run(msg, matches)
+  local result = 'Hacker News Top5:\n'
+  local top_stories_json, code = https.request('https://hacker-news.firebaseio.com/v0/topstories.json')
+  if code ~=200 then return nil  end
+  local top_stories = json:decode(top_stories_json)
+  for i = 1, 5 do
+    local story_json, code = https.request('https://hacker-news.firebaseio.com/v0/item/'..top_stories[i]..'.json')
+    if code ~=200 then return nil  end
+    local story = json:decode(story_json)
+    result = result .. i .. '. ' .. story.title .. ' - ' .. story.url .. '\n'
+  end
+  return result
+end
+
+return {
+  description = "Show top 5 hacker news (ycombinator.com)",
+  usage = "!hackernews",
+  patterns = {"^!hackernews$"},
+  run = run
+}
+
+end

plugins/magic8ball.lua

@@ -0,0 +1,22 @@
+do
+
+function run(msg, matches)
+  local answers = {'It is certain','It is decidedly so','Without a doubt',
+                  'Yes definitely','You may rely on it','As I see it, yes',
+                  'Most likely','Outlook good','Yes','Signs point to yes',
+                  'Reply hazy try again','Ask again later',
+                  'Better not tell you now','Cannot predict now',
+                  'Concentrate and ask again','Don\'t count on it',
+                  'My reply is no','My sources say no','Outlook not so good',
+                  'Very doubtful'}
+  return answers[math.random(#answers)]
+end
+
+return {
+  description = "Magic 8Ball",
+  usage = "!magic8ball",
+  patterns = {"^!magic8ball$"},
+  run = run
+}
+
+end