Commit Briefs
replace TAILQ_EMPTY/INSERT_HEAD/TAIL dance with a single TAILQ_INSERT_TAIL
Now that all the queues are correctly initialised, there's no need for that dance.
new_tab: allow to add the tab after a current one
this allows cmd_push_button_new_tab to open the new tab right *after* the current one, instead that always at the end.
fix redirect & history
the reload command doesn't push the current url to the history anymore.