added more tests to increase test coverage

Packets: Allow const access to annotations

PPI: Fix IntervalTimer unit test

Utils/Console: Ignore trailing '/' on auto-cd
Utils/Console: Add support for STL vector/list arguments and return values
Utils/Console: Set default server name from executable name
senfscons: Don't build SENF automatically in senfutil

Refactor build system to remove sub-library dependencies

PPI: Change most Packet arguments to const &
Packets: Change most Packet arguments to const &
Packets: Replace weird operator-> impleemntation

Scheduler: Optimize watchdog implementation
Socket: Change read-into-container implementation to skip unnecessary available() call
Add 'profile=1' compile option
Exclude 'boost' and 'std' symbols from documentation

Utils/Daemon: Make argv() return 'char const **'

Clean up all file-defines and remove all tabs

Packets/DefaultBundle: Fix EthernetPacketType::finalize() (don't throw when no next packet)
Scheduler/Console: Add some missing #undef's

PPI: Document Module::v_init() member
Scheduler: Rename EventEvent to EventHook
Documentation updates

Scheduler: EventEvent hook
Scheduler: Simple task priorities

Examples/MultiMCLoop: Add example and test for multiple local multicast socket forwarding
PPI: Emit throttle/unthrottle messages on connector connect

Scheduler/Console: Add 'sys' directory
Scheduler: Implement EventManager and 'sys/scheduler/events' command

Scheduler: Move remaining non-public implementation classes into 'detail' namespace
Adjust rest of SENF accordingly

Scheduler: Clean up FIFORunner::TaskInfo interface
Update rest of senf to use the new API

Scheduler: Move task 'name' argument to constructor
Scheduler: Remove obsolete 'enabled_' members
Scheduler: Remove obsolete SchedulerTimer class

Scheduler: Add automatic periodic resync to ClockService::abstime() and ClockService::clock()
Scheduler: Add task nameing
Scheduler: BUGFIX: Add missing task-dequeue in FdDispatcher::add()
Scheduler: Add empty() member to all dispatchers
Scheduler: Add eventTime() support to FdManager
Scheduler: Add support for non-pollable file descriptor detection to FdManager and FdDispatcher
Scheduler: Add FIFORunner task watchdog
Scheduler: Add debugging backtrace to FIFORunner
Scheduler: Change senf::Scheduler implementation to use the new dispatcher infrastructure
Scheduler: BUGFIX: Fix access to (possibly) destroyed object in TimerEvent::run()
Utils: Add senf::signalName() helper
Utils/Daemon: Use senf::signalName() in debug messages
Utils/Logger: Fix logger to correctly format the timestamp (the deadlock should be fixed now)
Update scheduler callback signatures to the new API throughout the project
Update documentation

IPv6SourceForcingDgramWriter added. this is more a proof of concept, proof of variability of the writer concept than a must-have integrated part of senf