Serializers for cookies
Update MessageVerifier to use a Serializer

You can specify your own serializer
Pseudo-random key generator
MessageEncryptor
Update Cookie store with encryption and signing options
Don't need this anymore
Raise an error message on invalid router indentifiers
Do not leak keywords into conn params
Make fetch_* functions pluggable
Rename assign_private/3 to put_private/3
Add put_status and support atoms statuses code
Use Elixir v1.0.0 on travis
static.ex: example send -> send_resp
Doc fixes so they format nicely
Merge pull request #98 from gjaldon/conn-doc-fixes

Doc fixes so they format nicely
Merge pull request #97 from pdericson/master

static.ex: example send -> send_resp
Allow guards in Plug.Builder compiler
Response field resp_content_type no longer exists
Merge pull request #102 from gjaldon/doc-fixes

Response field resp_content_type no longer exists
Merge pull request #72 from scrogson/encrypted_cookies

Add MessageEncryptor