Add #:include directive. Implement circular reference guarding and sanity checks.
Merge branch 'master' of https://github.com/kivy/kivy into kv_include

merge master before pull request
Correct example
Add option to force-include which first unloads the file and then reloads it. Check for proper extension and inclusion status before any disk access takes place. Update example.
Can install_twisted_reactor() outside of App.build
Deeper uninstall of Twisted Reactor
Allow cycles of install/uninstall of Twisted Reactor
Oops: forgot to be public about the new entry
Better docs on uninstall_twisted_reactor()
Clean unused import
Fbo: with_stencilbuffer parameter.
Log the version of python in use.
doc: revisions to sources/guide/lang.rst
Fixes #1847.
Return an empty string for missing summary lines. Can't compare None to strings in Py3k.
Merge pull request #1848 from valrus/master

Fixes #1847.
doc: fix doc generation + pep8
doc: Added scroll effect info to scrollview doc
Merge pull request #1849 from inclement/docfixes

doc: Added scroll effect info to scrollview doc
doc: Updated default behaviour in Settings doc