Update "Deploying on Heroku" section on README.md

[ci skip]
Update README.md

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Add Lifetime to disconnection on Console
Use exrm instead of relex

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Move signaturex to included_applications

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Update Release section on README.md

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Bump version 0.1.1

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Update exlager
Update to Elixir 0.13.3
The cacertfile file is optional for cowboy.
Update the error text for missing info.
Merge pull request #7 from darrencauthon/optional_cacertfile

Optional cacertfile
Update README.md

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Fix unused variable warning
Update Signature to 0.0.3 on mix.exs

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Update to Elixir 0.14.0

Also deps and travis config
Fix websocket handler tests
Fix deprecation warning on GenEvent
Bump 0.2.0

[ci skip]
Update to Elixir 0.14.1