ignore cython build files
added getNumberOfAlignments
use ggplot for PCA plot
pep8 changes
generalized treatment of multimapping reads to ignore/weight/all
add pipelines directory to path
added plottagstats method
proper bigwig files for rnaseq data
pipeline_rnaseq_diffexpression - integrate gtf2table and featurecounts
added multiplot.R
merged changes with Andreas' branch
pep8 changes