Fix tutorial with link to filer installation instructions
Merge pull request #1911 from yakky/feature/doc_filer_fix_24

Fix tutorial with link to filer installation instructions
Fixes #1004
Adding some information on using pip and virtualenv

Backport to 2.4 of #1908
Backport minor installation rewording to 2.4
Merge pull request #1923 from yakky/feature/virtualenv_doc_backport

Backport of #1908 installation doc
Test for #1919
Cache-busting in show_placeholder if page in preview mode
Merge pull request #1927 from yakky/feature/show_placeholder_uncached_preview

Test and fix for #1919
toolbar refactor working
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remove weird hack, seems to work again
some changeform improvements
Merge branch 'develop' of github.com:divio/django-cms into feature/cleanups
refactored change_form and slug generation
fix an issue with reloading setting the wrong url
make use of close frame template
remove newline on end of file
remove spaces
fixes js issues
fixes html issues and remove not required spaces