Fixed return types in Redirect class

Signed-off-by: Daniel Bondergaard <danielboendergaard@gmail.com>
Merge pull request #787 from danielboendergaard/docblock-updates

Fixed return types in Redirect class
Merge pull request #789 from und1f/master

Added FormBuilder tests
Change visibility of Form::getValueAttribute.
Properly prefix Redis and Memcached keys.
Added Str::macro.
Calling `update` on a Model instance will fill and update that model.
Add custom HTML macros to HtmlBuilder
Fix a few Eloquent bugs.
Merge pull request #803 from Anahkiasen/html-macros

[Proposal] Add custom HTML macros to HtmlBuilder
Add missing HTML::script and HTML::style
Merge pull request #810 from Anahkiasen/patch-1

[Proposal] Add missing HTML::script and HTML::style
Fix bug in Eloquent.
Fix timestamp setting.