removed old gemfile
pom.xml: removed data_mapper, added sequel deps
updated environment configuration
converted migrations to Sequel

adjusted load order in teevee.rb and runtime.rb so that library/media.rb
is always loaded after Sequel.connect call
rewrite Searchable as a Sequel model plugin

add trigram search functions `similar` and `or_similar`
add nice ordering when searches or similarity matches are performed
converted Media from DataMapper to Sequel active record

Searchable now included as a Sequel::Model plugin
attributes inferred from the database schema
convert Indexer to use Sequel interfaces
converted IntentController to Sequel (pretty now :)
added classpath to load_path
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Merge branch 'sequel-orm'