CMake: bump versions post-release

CHANGES

@@ -3,6 +3,15 @@ contributors are listed. Note that Calamares does not have a historical
 changelog -- this log starts with version 3.2.0. The release notes on the
 website will have to do for older versions.
 
+# 3.2.8 (unreleased) #
+
+This release contains contributions from (alphabetically by first name):
+
+## Core ##
+
+## Modules ##
+
+
 # 3.2.7 (2019-04-27) #
 
 This is a **hotfix** release for regressions introduced in the

CMakeLists.txt

@@ -37,10 +37,10 @@
 
 cmake_minimum_required( VERSION 3.2 FATAL_ERROR )
 project( CALAMARES
-    VERSION 3.2.7
+    VERSION 3.2.8
     LANGUAGES C CXX )
 
-set( CALAMARES_VERSION_RC 0 )  # Set to 0 during release cycle, 1 during development
+set( CALAMARES_VERSION_RC 1 )  # Set to 0 during release cycle, 1 during development
 
 ### OPTIONS
 #