Prepare for 1.2 release

Conflicts:
	CHANGELOG.txt
	wagtail/wagtailcore/__init__.py

CHANGELOG.txt

@@ -5,7 +5,7 @@ Changelog
 ~~~~~~~~~~~~~~~~
 
 
-1.2 (xx.xx.xxxx)
+1.2 (12.11.2015)
 ~~~~~~~~~~~~~~~~
 
  * Added `wagtail.contrib.settings`, a module to allow administrators to edit site-specific settings

docs/releases/1.2.rst

@@ -1,6 +1,6 @@
-==========================================
-Wagtail 1.2 release notes - IN DEVELOPMENT
-==========================================
+=========================
+Wagtail 1.2 release notes
+=========================
 
 .. contents::
     :local:

wagtail/project_template/requirements.txt

@@ -1,2 +1,2 @@
 Django>=1.8,<1.9
-wagtail==1.2rc1
+wagtail==1.2