orphaned ones at startup (ticket #1498)

catch IAE from getInstance() if i2ptunnel.config isn't found
in app context; log tweaks; config command tweaks
Unit tests: Fix several NPEs in LocalClientManager,
implement HostLookup

 - close socket in finally
 - really comment out main()

 - Add country-to-continent mapping
 - Add continent pool.ntp.org zones as first fallback,
   this will improve time service for countries that don't have a zone
 - Don't start threads in constructors
 - Fix logging, better prevention of initialization loops
 - Log severe errors to wrapper log also
continent.txt file from http://dev.maxmind.com/geoip/legacy/codes/country_continent/
Creative Commons Attribution-ShareAlike 3.0 Unported License
http://dev.maxmind.com/geoip/legacy/geolite/
Terms already met in LICENSE.txt

header timeout and prevent long reseed hangs

patch from "Inondle", cleaned up and tested

     and 'b9d4479f7e0f562a5fd47f2d494fe1b2b0925cbe'

            to branch 'i2p.i2p' (head 0cf35c87b68a5360bd35257e36dfe7f740e53693)

rename shadowing field in inner class

            to branch 'i2p.i2p' (head 1b89427bd2952dc4be08fba14ad1d814d722739f)