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Merge pull request #11 from chrisbarr/patch-2

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Bump cinch version dependency
Add readme
Rename README to README.md for github's formatting to kick in
Updated readme

* Include a ToC
* Rejig headers
* Fix existing header linkx (github)
Call I18n.reload! when changing languages
Don't store TWG::Lang instance in TWG::Core class var @@lang.

Instead, @@lang is just the active language pack symbol. A new TWG::Lang
instance is created if the plugin is reloaded. This means I18n.reload!
gets called when the TWG::Loader class reloads TWG::Core.
Remove unnecessary Gemfile
Update gitignore
Add more variance to the default language pack
Talk about cheeses in the README
Fall back to default language pack if a key is missing in a non-default pack
Remove unchanged keys from internet language pack
Fix LangException not ignoring the special i18n.plural.rule key
Don't say "player was normal" message after a no-vote day.
Make seer/vigilante load per-player odds from config
Make a third of player immune to the vigilante.

Players are picked at random from the whole set of players at the start
of the game, they can be of any role.
Update internet language pack for compatibility with bulletproof villagers
Grammatical changes and repetitiveness