Make getSearchTweets private?

[Ryuno-Ki]

Looking at

tweetback/src/twitter.js

Lines 54 to 62 in d03e289

	getSearchTweets(tweets, searchObj) {
	return tweets.filter(tweet => {
	return this.isSearchMatch(tweet, searchObj.term, searchObj.caseSensitive, searchObj.before) &&
	!this.isRetweet(tweet) &&
	(searchObj.includeReplies || !this.isMention(tweet) && !this.isReply(tweet));
	}).sort(function(a,b) {
	return b.date - a.date;
	});
	}

it appears to be used only within this class. Therefore I suggest to declare it as a private method (by prefixing it with an underscore or using private class feature).