Update docs version and clear release notes after 8.0.0 version bump

git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@338561 91177308-0d34-0410-b5e6-96231b3b80d8

docs/conf.py

diff --git a/docs/conf.py b/docs/conf.py
index c3b51fc..35b07a2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -11,6 +11,7 @@
 # serve to show the default.
 
 import sys, os
+from datetime import date
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -40,16 +41,16 @@
 
 # General information about the project.
 project = u'libunwind'
-copyright = u'2011-2017, LLVM Project'
+copyright = u'2011-%d, LLVM Project' % date.today().year
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-version = '7.0'
+version = '8.0'
 # The full version, including alpha/beta/rc tags.
-release = '7.0'
+release = '8.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.