big patch

GzmUtils:       bash redirects stdout and stderr correctly
GzmUtils:       fixed sh to be a real shell call
GzmUtils:       resurrected pipefail
GzmUtils:       unzip pipeline
Ucsc:           resurrected chrom_info stuff
Labs:           Motif Local Enrichment Analysis module
Labs:           Binding region_finder
big commit

bioinfo/MBSchema: added RNA_seq samples
bioinfo/MBPipeline: added RNA_seq module
bioinfo/MBPipeline: TF ChIP_seq conditions
bioinfo/Samtools: fixed type of indexed_bam_of_bam
bioinfo/Tophat: started implementation
bioinfo/Ucsc: imported Custom_track module from oregon
core/Utils: shout function to get the (std) output of a shell call
tools/Unix: silenced wget and gunzip