Added TimeStamp Abstraction

Change-Id: Ieedd0a41f094dee4994ff1d234e48fc74cd8a953
Fixed ConstIterator in List

Change-Id: I7d1db7d7436895fc890485e1780168ef19c390d2
Fixed a Socket problem which occurs during send on socket if
receiving site reads to slow

Change-Id: Id9d0df01aceb866b6a43c83ddfa56d8d37263163
Moved logLevel from Logger to LogContext

Change-Id: Ia52ec805f99b4889e063096bf6632459de2b174f