Changed SDK tutorial based on latest repo changes and some feedback.

Addressed some review comments.

Latest changes to SDK tutorial based on review comments.

Corda SDK -> CorDapp Template

Addressed review comments + added some new sections.

Added pic of run config drop down menu.

Added a couple of additional sections.

Refactored the 'how to make a cordapp' how to a separate docs pages and stubbed it out for comments.

Added index.rst

Additional changes based on feedback.

Addressed review comments. Removed spurious buuildinfo file.

Minor changes based on richard's comments. Still waiting on resolution of dev experience preference.

Changed milestone release workflow. Users now should checkout a specific tag.

docs/source/creating-a-cordapp.rst

@@ -1,5 +1,5 @@
-Creating a CorDapp
-==================
+CorDapps Background
+===================
 
 A Cordapp is an application that runs on the Corda platform using the platform APIs and plugin system. They are self
 contained in separate JARs from the node server JAR that are created and distributed.

docs/source/index.rst

@@ -1,5 +1,5 @@
-Welcome to the Corda!
-=====================
+Welcome to the Corda documentation!
+===================================
 
 .. warning:: This build of the docs is from the *master branch*, not a milestone release. It may not reflect the
    current state of the code.
@@ -59,6 +59,7 @@ Read on to learn:
    :caption: CorDapps
 
    creating-a-cordapp
+   tutorial-cordapp
 
 .. toctree::
    :maxdepth: 2
@@ -68,7 +69,6 @@ Read on to learn:
    tutorial-contract
    tutorial-contract-clauses
    tutorial-test-dsl
-   tutorial-cordapp
    tutorial-clientrpc-api
    flow-state-machines
    flow-testing