Add SequelHelpers module
Migrate EDICT to Sequel+Sqlite
Migrate ENAMDICT to Sqlite+Sequel
Migrate CEDICT to Sequel+Sqlite
Migrate YEDICT to Sequel+Sqlite
Request bash instead of sh in init_dictionaries.sh
Add Kotobank plugin
Add Kanastats plugin
Use 'free' instead of 'ps' and show swap in Memory
Migrate to Ruby 2.0.0