Updating params files with Movie and Image layers

If your params file uses Movie, Image, MoviePvp, ImagePvp, or FilenameParsingGroundTruthLayer it will need to be updated to continue to work with PetaVision. The necessary changes are as follows:

• Movie and Image layers should now use the group name ImageLayer
• MoviePvp and ImagePvp layers should now use the group name PvpLayer
• Layers that used to be Image or ImagePvp should set the displayPeriod param to 0
• The param useImageBCflag should be replaced with useInputBCflag
• Batch methods byImage and byMovie should be replaced with byFile and byList respectively
• Layers that used to be ImagePvp layers should change pvpFrameIdx to an array called start_frame_index. Each entry corresponds to one batch index.
• The params writeImages, jitterFlag, and echoFramePathnameFlag should be removed, as they are no longer used.
• FilenameParsingGroundTruthLayer now expects a param titled inputLayerName instead of movieLayerName.