[search] Show title in google search results
[search/rss/url] More consistent format for URL messages

Display the title in bold, then a dash, then the URL.
[youtube] Reformat YouTube search results

Might as well throw this one in there too.
[url] Add back unicode_literals to avoid UnicodeDecodeError

Also match formatting in title_command() to title_auto().
[rss/search/url/youtube] Remove bold from search result titles

And use bot.reply() to reply to explicit requests, for clients that
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