spelling correction.
Fixing tag generation for Html::script() and Html::css() when using 'fullBase' => true.

Changing values on array_diff_key() from empty ('') to null as they have no consequences and offer better readability.
Backwards compat for auth in the config array of HttpSocket::request()
Brings functionality back in line with docs as well
Merge pull request #1207 from renansaddam/supportFullBaseOnScriptAndCss

Fix missing support for fullBase in script() & css()

HtmlHelper::script(), HtmlHelper::css() did not have support for fullBase
added when it was added to image(). Fix that omission.
Merge pull request #1203 from cincodenada/patch_httpsocket

Add a bit of backwards compatibility for specifying auth in the config.

Restore compatibility with older versions when providing auth data in the
request data.