* Release and upgrade notes for V1.0
* Update changelog.rst
* Update changelog.rst
* Formatting.
* Incorporating review feedback from KB and MN.
* "guarantee" instead of "promise"
* Updated with final review comments from KB and RGB.
* Updated upgrade notes to describe migration from removed CordaPluginRegistry.
* Minor clarification.
* Minor updates following final RGB feedback.
* Kat's further pedantic feedback
* Minor changes following feedback from KB.
* Incorporating review feedback from MH.
* killed 'patent-pending'
