Fixed 'Undefined variable' notice
Added 'Static' functionality

Allows to add a specific static URI which will override any other SEO
Lite entry data.
Fix for root URI

Allows for root URI
Merge pull request #5 from Repox/master

bug was already fixed but merging this feature -- "Additionally, I've added a functionality to allow for specific URI's to be able to override any other SEO Lite entry data - I named it 'Static'.

This function can be disabled on template basis by adding static_ignore="yes" to a template tag."