added timestamp function

Change-Id: I3ef0eb613c7201a73eaadb7172cf10564de8ef19
cleanup

Change-Id: Ia3de58c5186eec29919b43122c1c5624e849cf37
fixed bug with queueing of replies

Change-Id: I4d17e561eb1270bbd9df9c27325c3e768d0ab10a
Added err message for quota

Change-Id: I55c8f8270d8446f52aea7e49855f3b8f7a377511