taxi: working index()
Merge branch 'dev' into f_taxi

Conflicts:
	taxi/application/config/routes.php
f_taxi: working index() with taxi_revision
f_taxi: prepared create() and update() views
f_taxi: Quick fix: controller create()
f_taxi: working create()
f_taxi: working update(); create() now has 'item exists' checker
taxi: fixed retrieve() to be more optimized
Fixed the redirects