Show all emoji if no search string is provided

Alfred ranks script input results by most frequently used, so this seems like it would actually be useful. Type `emoji` to see the last couple emoji that were used.

emoji.rb

@@ -79,7 +79,10 @@ def codepoints_to_emoji(arr); arr.map(&:to_i).pack('U*'); end
   query = ARGV.join(' ').downcase.strip
   STDERR.puts "QUERY: `#{query}`"
 
-  if query.strip != ''
+  if query.strip == ''
+    # show everything if no query is provided
+    matches = EMOJIS['db'].keys
+  else
     EMOJIS['search_strings'].each do |key, ss|
       if ss.include?(" #{query} ")
         exact_matches.push key

info.plist

@@ -125,7 +125,7 @@
 				<key>alfredfiltersresults</key>
 				<false/>
 				<key>argumenttype</key>
-				<integer>0</integer>
+				<integer>1</integer>
 				<key>escaping</key>
 				<integer>0</integer>
 				<key>keyword</key>