Fixing href instead of src attribute.

Fixes #102.
Removing dashes in the theme folder example.

As pointed out in the issues, this is a logical issue since you can't use dashes in a PHP class name. Fixes #110.
Fixing link to translation docs.

Fixes #97.
Fixing the examples in the streams drivers so they all match.

My examples are bad and I should feel bad.
Adding function nav on the streams CP driver page.
Fixing the last of the grammatical errors listed in that github issue.

Closes #63.
Fixing ajax example URL.
Fixed changelog.
Merge branch '2.1' of git://github.com/pyrocms/pyrocms-docs into 2.2