Context library: fix non-static methods (E_STRICT notice)
Context library: fix non-static methods (E_STRICT notice)

All the other Context methods are static; these two need to be as well.

"Strict standards: Non-static method Contexts::context_nav() should not be
called statically in
/home/alan/php/Bonfire/bonfire/modules/ui/libraries/contexts.php
on line 343"

"Strict standards: Non-static method Contexts::sort_actions() should not be
called statically in
/home/alan/php/Bonfire/bonfire/modules/ui/libraries/contexts.php
on line 432"

PeterRock/Ci-Bonfire3,PeterRock/Ci-Bonfire3,kelaskakap/cms-api-unggun,PeterRock/Ci-Bonfire3,kelaskakap/cms-api-unggun,kelaskakap/cms-api-unggun