Fixes #24.
ilastik/applets/nanshe/dictionaryLearning/nansheDictionaryLearningGui.py: Provides a button to give the user with a dialog about SPAMS. Includes a link to SPAMS documentation. Content is the same as the current tooltip.
ilastik/applets/nanshe/preprocessing/opNansheRemoveZeroedLines.py: Increased the temporal size of the cache.
ilastik/applets/nanshe/preprocessing/opNansheExtractF0.py: Set a minimum length for the cache over time.
ilastik/applets/nanshe/preprocessing/opNansheWaveletTransform.py: Set a minimum block length over time.
ilastik/applets/nanshe/preprocessing/nanshePreprocessingGui.py: Remove Bias checking as this should be triggered through notifications on the slot.
ilastik/applets/nanshe/dictionaryLearning/drawer.ui: Added a blank button that will be used to provide info about SPAMS.