BUG Fix publishing of blog posts
Merge pull request #129 from tractorcow/pulls/fix-master2

BUG Fix publishing of blog posts
Set default author

The default author did not work, at least on my installation. I believe this is a better solution (although of course you can argue whether it should be getName() or FirstName).
Add test to check that populate defaults works as expected
Add extension hooks to blog entry form (so we can customise management form)
Switch to tab based indentation
Rebase and merge upstream