Update README and RELEASE_NOTES for version 1.2.0-RC1

Signed-off-by: Erik Merkle <[email protected]>

README.md

@@ -10,11 +10,13 @@ Details
 
 Project Lead: [Gabriel Roldan](https://github.com/groldan)
 
-Status: 
+Status:
+
+Version 1.2.0-RC1 has been released and it is available for [download](https://github.com/locationtech/geogig/releases/tag/v1.2.0-RC1).
 
 Version 1.1.1 has been released and it is available for [download](https://github.com/locationtech/geogig/releases/tag/v1.1.1).
 
-The build is actively monitored at [LocationTech Build Server](https://hudson.locationtech.org/geogig/).
+The build is actively monitored at [LocationTech Build Server](https://ci.locationtech.org/geogig/).
 
 License
 -------
@@ -27,9 +29,9 @@ GeoGig is proudly open source:
 Download
 --------
 
-The latest release [Version 1.1.1](https://github.com/locationtech/geogig/releases/tag/v1.1.1) is available on GitHub.
+The latest release [Version 1.2.0-RC1](https://github.com/locationtech/geogig/releases/tag/v1.2.0-RC1) is available on GitHub.
 
-The previous release [Version 1.1.0](https://github.com/locationtech/geogig/releases/tag/v1.1.0) is also available on GitHub.
+Previous releases are also available on GitHub [here](https://github.com/locationtech/geogig/releases).
 
 Installation
 ------------

RELEASE_NOTES.md

@@ -1,3 +1,21 @@
+#GeoGig 1.2.0 Release Notes (work in progress)
+
+October 19, 2017.
+
+##Clone/Fetch/Replication Improvements
+
+Details forthcoming
+
+##Web API Refresh
+
+The GeoGig web API has been re-implemented using Spring MVC (replaces Restlet). This change preserves the API (endpoints and Request-Response interchanges), but enables the GeoServer plugin for GeoGig to be compatible with GeoServer 2.12 and newer.
+However, the change prevents newer versions of GeoGig from being used with older versions of GeoServer, and vice versa.
+
+For GeoServer 2.12 and newer, you must use GeoGig version 1.2.0 or newer.
+For GeoServer 2.11 and older, you must use GeoGig version 1.1.1.
+
+The GeoGig [releases page](https://github.com/locationtech/geogig/releases) contains the GeoServer plugin bundles with the appropriate versions of GeoGig.
+
 #GeoGig 1.1.1 Release Notes
 
 July 10, 2017.