Stability issues WIP.

What's Next?

 * Update the protocol spec and push to Tildegit
 * Cleanup fix scratchpad.sh (currently crashes because ::Draft.current is unexpectedlyy nil)
 * Fix failing test (going to make ::Draft.current crash maybe)
 * Make blobs URLSafe b64??

README.md

@@ -39,6 +39,7 @@ Eg: `pigeon identity show` becomes `./pigeon-cli show`.
  - [ ] 100% documentation
  - [ ] add parsers and validators for all CLI inputs
  - [ ] Validate inputs for `Draft#[]=`.
+ - [ ] Perform message verrification at time of disk write?
  - [ ] Performance benchmarks
  - [ ] Performance tuning (DO THIS LAST!)
  - [ ] Update spec to look [like this](https://gist.github.com/RickCarlino/3ff4178db4a75fd135832c403cd313d4)

dist/pigeon/message.rb

@@ -16,7 +16,7 @@ module Pigeon
     end
 
     def render
-      MessageSerializer.new(self).render.chomp
+      template.render.chomp
     end
 
     def multihash
@@ -30,16 +30,7 @@ module Pigeon
       @template ||= MessageSerializer.new(self)
     end
 
-    def template_string
-      @template_string ||= template.render_without_signature
-    end
-
-    def keypair
-      puts "I should be using @author here!"
-      @keypair ||= KeyPair.current
-    end
-
-    def initialize(author:, kind:, body:)
+    def initialize(author:, kind:, body:, signature: nil)
       raise "BODY CANT BE EMPTY" if body.empty?
       @author = author
       @kind = kind
@@ -47,14 +38,14 @@ module Pigeon
       # Side effects in a constructor? Hmm...
       store = Pigeon::Storage.current
       @depth = store.message_count
-      @signature = calculate_signature
+      @signature = signature || calculate_signature
       @prev = store.get_message_by_depth(@author, @depth - 1)
       self.freeze
       store.save_message(self)
     end
 
     def calculate_signature
-      keypair.sign(template_string)
+      @author.sign(template.render_without_signature)
     end
   end
 end