[CMakeLists.txt] Removed one of the yarp-related apps
[yarp/learn_conf_space] New class for exploring the space of configurations of the iHead eyes
[yarp/move_ihead_consumer] Added comments and a test application
[yarp/learn_conf_space] Added comments and a test application
[components/GaussianBlobTracker] Added a new tracker filter with a Gaussian Blob transfer function
[components/AnalyticalFeatureTracker] Compatibility with global activity normalization

Quick hack, the normalization is not taken into account
[components/GaussianBlobTracker] working version of the Gaussian Blob Tracker

Modifications have been made to the FeatureTracker class to accept the output
of arbitrary events + new representation in the bank_indicator
[components/FileProducer] Added compatibility with old file format

/!\ The compatibility mode detection is very weak and is based on the presence
    of a comment at the beginning of the file. So a file with the new format
    should always begin by a comment line or it will be considered as an old
    format file.
[Components/GaussianBlobTracker] Only update size of the blob if the event is important enough for the current distribution