(NC-154) Rename classifier.conf to classifier.ini

In preparation for upgrading to trapperkeeper 0.3.4, all ini files must
actually be named *.ini.
(NC-154) Upgrade to trapperkeeper 0.3.4

This also bumps related projects trapperkeeper-webserver-jetty7 and
kitchensink.
(maint) Move conch dependency to dev profile

We only use this for testing.
Merge pull request #40 from pcarlisle/nc-154-config-ini

(NC-154) Update to TK 0.3.4 and change config extension to ini