Bump version to 1.3.0-rc1

First pre-release for v1.3.0.

Signed-off-by: David Brown <david.brown@linaro.org>
diff --git a/README.md b/README.md
index 4335444..dccc96d 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [coverity]: https://scan.coverity.com/projects/mcuboot
 [travis]: https://travis-ci.org/JuulLabs-OSS/mcuboot
 
-This is mcuboot, version 1.2.0
+This is mcuboot, version 1.3.0-rc1
 
 MCUboot is a secure bootloader for 32-bit MCUs.   The goal of MCUboot is to
 define a common infrastructure for the bootloader, system flash layout on
diff --git a/repository.yml b/repository.yml
index aa86c44..7bf185c 100644
--- a/repository.yml
+++ b/repository.yml
@@ -24,6 +24,7 @@
     "1.0.0": "v1.0.0"
     "1.1.0": "v1.1.0"
     "1.2.0": "v1.2.0"
+    "1.3.0-rc1": "v1.3.0-rc1"
 
     "0-dev": "0.0.0"        # master
     "0-latest": "1.2.0"     # latest stable release
diff --git a/scripts/setup.py b/scripts/setup.py
index 0ec2cd9..67cca9f 100644
--- a/scripts/setup.py
+++ b/scripts/setup.py
@@ -2,7 +2,7 @@
 
 setuptools.setup(
     name="imgtool",
-    version="1.2.0",
+    version="1.3.0",
     author="The MCUboot commiters",
     description=("MCUboot's image signing and key management"),
     license="Apache Software License",