Scheduler: Rename watchdog scheduler functions

Scheduler: Implement BlockSignals helper class

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

Clean up all file-defines and remove all tabs

Scheduler: EventEvent hook
Scheduler: Simple task priorities

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: Fix FIFORunner exception safety
Scheduler: Implement new signal event API
Migrate SENF to use new signal API

Scheduler: Watchdog configuration support

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

PPI: Add documentation
Utils: Make Logger macros define empty stub types

PPI: Fix PassivePackeSink: provide front() instead of back() members
PPI: Provide specializations for void-argument callbacks in Events and Route
PPI: Add notifyThrottle/notifyUnthrottle to EventDescriptor
PPI: Re-implement routing classes using a traits-based implementation
PPI: Add Route unit testing (mainly testing throttling)

PPI: Implement throttling
PPI: Implement ModuleManager and ppi::init
PPI: Implement ThresholdQueuing
PPI: Hugely extended routing classes

Socket/Protocols/INet: Slightly optimized generic INet6Address algorithms
Utils: Add ios_all_saver to hexdump()
senfscons: Add automatic image-copy to Doxygen builder (fixes weird doxygen copy problem)
Socket/Protocols/Inet: Add ConnectedUDPSocketHandle

Unified emacs Local Variables

Renaned directory satscons to senfscons

started ClientSocketHandle generic interface

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