Namespace changes for the following classes:

O2itsGeoHandler -> GeometryHandler
O2itsContFact -> ContainerFactory
O2itsMisalignPar -> MisalignmentParameter
AliGeomManager -> GeometryManager
AliITSv11Geometry -> V11Geometry
AliITSUv1Layer -> UpgradeV1Layer
AliITSsegmentation -> Segmentation
AliITSUSegmentationPix -> UpgradeSegmentationPixel
AliITSUGeomTGeo -> UpgradeGeometryTGeo
O2itsPoint -> Point
O2its -> Detector

Dropped the digitization skeleton
Renamed all header guards according to the O2 coding guidelines
Conform the contents of the ITS directory to the coding guidelines: Detector class (Part 1)

Naming and formating rules for the following classes:
Detector
GeometryHandler
GeometryManager
MisalignmentParameter
Segmentation
UpgradeGeometryTGeo
UpgradeSegmentationPixel
UpgradeV1Layer
V11Geometry
Point
Use boost::program_options for command line argument handling in FLP2EPN and FLP2EPN-dynamic.
Common options like number of io threads now have default values.
To find out all available options for an executable run it with '--help'.
Existing scripts have been updated to use the new format.
add build to ignored
use getters and setters for heartbeat intervals
remove unused method
include missing payload member in EPN
etc
first version of FLP2EPN-distributed
add frame builder files, etc
unblocked
first version staggered output
remove unnecessary data member