docs: bump version to 1.6.0 (#336)

Signed-off-by: Matt Klein <mklein@lyft.com>

docs/conf.py

@@ -56,7 +56,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'envoy'
-copyright = u'2016-2017, Envoy Project Authors'
+copyright = u'2016-2018, Envoy Project Authors'
 author = u'Envoy Project Authors'
 
 # The version info for the project you're documenting, acts as replacement for
@@ -67,9 +67,9 @@ if not os.environ.get('ENVOY_DOCS_VERSION_STRING'):
   raise Exception("ENVOY_DOCS_VERSION_STRING env var must be defined")
 
 # The short X.Y version.
-version = u'1.5.0-' + os.environ['ENVOY_DOCS_VERSION_STRING']
+version = u'1.6.0-' + os.environ['ENVOY_DOCS_VERSION_STRING']
 # The full version, including alpha/beta/rc tags.
-release = u'1.5.0-' + os.environ['ENVOY_DOCS_VERSION_STRING']
+release = u'1.6.0-' + os.environ['ENVOY_DOCS_VERSION_STRING']
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -216,4 +216,3 @@ html_static_path = ['_static']
 
 # Output file base name for HTML help builder.
 htmlhelp_basename = 'envoydoc'
-