fix for BC for base_url

Selami view factory updated

empty requestedPath issue resolved

empty file name is not allowed but null

Factory fixed for non exteded PSR-7 ServerRequest objects

router factory fixed for the sites that runs under different folder

SymfonySessionRedisFactory fixed for Redis and REdisFactory fixed for…

… connection options

Composer autload file issue fixed

Redis adapter fixed for SymfonySessionRedisFactory

RedisSessionHandler added for Symfony Session