removed references to Celera directory now that binaries are on the path by default.
removed references to Celera directory now that binaries are on the path by default.

EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller