Fixing #63 #62

Fixing #60

Fix #59 "UnboundLocalError: local variable 'response' referenced before assignment"

Fix #46 KeyError: u'resolved_title'

Replace tld with standard Python way (not as good as tld but works without extra package) if SECTIONS_BY_DOMAIN_USING_TLD = False.

Great contributions from @nhohung @alvaroreig !

Why? To avoid problems when you run this plugin for the first time and you have thousands articles in your Pocket. If you know what you're doing you can always change it.