Packets: Add short documentation for most internal classes

Packets: Document DataPacket, safe_data_iterator and exceptions
Packets: Move bundle documentation out of the Packets documentation
Scheduler: Make test more robust (add sleep ...)
Move all local dictionary words into senf.dict

senf.dict

+accessor
+addtogroup
+berlios
+bitfield
+bund
+Bund
+callbacks
+cerr
+cfi
+CFI
+ConcretePacket
+const
+createAfter
+createBefore
+DataPacket
+de
+DefaultBundle
+defaultInit
+defgroup
+dil
+endcode
+eth
+ethernet
+EthernetPacket
+EthernetPacketType
+EthernetParser
+ethertype
+Ethertype
+EthVLan
+findNext
+findPrev
+fokus
+FOKUS
+FooParser
+fraunhofer
+Fraunhofer
+fuer
+hh
+hideinitializer
+href
+html
+http
+impl
+INet
+ingroup
+init
+initHeadSize
+initSize
+Institut
+InvalidPacketChainException
+ip
+IP
+IpV
+IPv4
+key
+Kommunikationssysteme
+Kompetenzzentrum
+li
+MACAddress
+mainpage
+mixin
+Mixin
+namespace
+NextPacket
+nextPacketKey
+nextPacketRange
+nextPacketType
+noinit
+nothrow
+offene
+Ok
+Ooops
+org
+os
+ostream
+OtherPacket
+OtherPacketType
+OverlayField
+PacketData
+PacketImpl
+PacketInterpreter
+PacketInterpreterBase
+packetparser
+PacketParser
+PacketParserBase
+packetparsermacros
+PacketParsers
+PacketRegistry
+PacketSocketHandle
+PacketType
+PacketTypeBase
+PacketTypeMixin
+PacketTypeNotRegistered
+PacketType's
+param
+parseNextAs
+png
+prev
+protocolbundle
+protocolbundles
+refcount
+registerPacket
+registerPacketType
+registerSomePacket
+RegistrationProxy
+rerference
+SatCom
+Satelitenkommunikation
+senf
+SENF
+SimplePacketType
+SimpleVectorSizer
+someField
+someOtherField
+SomePacket
+SomePacketParser
+SomePacketType
+SomeParser
+SomeRegistryTag
+SomeTag
+someVector
+std
+stefan
+STL
+struct
+structors
+Structors
+templated
+TruncatedPacketException
+tt
+ttl
+typeField
+udp
+UDP
+UDPPacket
+UInt
+UIntField
+vlanId
+VLanId
+VoidPacketParser
+www