Add microformats2 class names to heuristics (#303)

Microformats updated their old `hentry` to [a newer
`h-entry`](http://microformats.org/wiki/h-entry).

With the [number of IndieWeb sites breaking into the
ten-thousands](http://tantek.com/2016/190/b1/state-of-indieweb-summit),
this seems like a fair idea.

Readability.js

@@ -114,10 +114,10 @@ Readability.prototype = {
   REGEXPS: {
     unlikelyCandidates: /banner|combx|comment|community|disqus|extra|foot|header|menu|modal|related|remark|rss|share|shoutbox|sidebar|skyscraper|sponsor|ad-break|agegate|pagination|pager|popup/i,
     okMaybeItsACandidate: /and|article|body|column|main|shadow/i,
-    positive: /article|body|content|entry|hentry|main|page|pagination|post|text|blog|story/i,
+    positive: /article|body|content|entry|hentry|h-entry|main|page|pagination|post|text|blog|story/i,
     negative: /hidden|^hid$| hid$| hid |^hid |banner|combx|comment|com-|contact|foot|footer|footnote|masthead|media|meta|modal|outbrain|promo|related|scroll|share|shoutbox|sidebar|skyscraper|sponsor|shopping|tags|tool|widget/i,
     extraneous: /print|archive|comment|discuss|e[\-]?mail|share|reply|all|login|sign|single|utility/i,
-    byline: /byline|author|dateline|writtenby/i,
+    byline: /byline|author|dateline|writtenby|p-author/i,
     replaceFonts: /<(\/?)font[^>]*>/gi,
     normalize: /\s{2,}/g,
     videos: /\/\/(www\.)?(dailymotion|youtube|youtube-nocookie|player\.vimeo)\.com/i,