Fixed typo.
Fixed typos in comments.
Fixed typo in comment.
Fix typos in comments.
Merge pull request #253 from stweil/master

Fix typos (mostly in comments)
Style fixes.
Fix typo in error message.
Fix typo in comment and other changes (don't commit)
solr: Fix typos in comments.
themes: Fix typos in comments.
themes: check
vendor: check