Fix breaking/sticky logic

Only break on the first thread with no new posts if that thread is not
sticky. Also, ignore sticky threads unless this is the first page.

db/scrape.rb

   cookie = login(ENV['VLV_USERNAME'], ENV['VLV_PASSWORD'])
   db = connect
 
-  (first..last).each do |page_number|
+  (first..last).each_with_index do |page_number, index|
     page = fetch_page(page_number, cookie)
     threads = parse_threads(page)
     threads.each do |t|
-      puts t[:title]
       sleep(1)
+      is_sticky = t[:title].match(/^Sticky:/)
+      next if index > 0 && is_sticky
       page = fetch_thread(t, cookie)
       first_post = page.at_css('.postinfo:first-child')
 
 
       last_post = posts.last
       unless db.from(:posts).first(remote_id: last_post[:remote_id]).nil?
+        next if is_sticky
         break
       end