Fixed timezone issue
Revert "Fixed timezone issue"

This reverts commit 3d2a326e2666194bcbbd5f1e567c937cc0b14c09.
Revert "Removed unnessary log"

This reverts commit bc9779f69cd752bc8363c782ccea4f485818dd1f.
Revert "Moved arrival cache to instance memory cache rather than memcache"

This reverts commit 28bcbf2468ea2440a595e10ecde05a477da8b00e.
Reverted to memcache implementation (urlfetch is limiting factor)