first commit - breaking it up to run each histone mark separately

mouse/configs/SRR_H3K27ac.txt

+replicate	antibody	stage	treatment	control
+1	H3K27ac	E10.5	ENCFF213EBC	ENCFF157KEH
+2	H3K27ac	E10.5	ENCFF548BRR	ENCFF825AVI
+1	H3K27ac	E11.5	ENCFF512SFE	ENCFF184CUE
+2	H3K27ac	E11.5	ENCFF515PKL	ENCFF376FGM
+1	H3K27ac	E12.5	ENCFF394TZN	ENCFF203JQV
+2	H3K27ac	E12.5	ENCFF011NFM	ENCFF058AUT
+1	H3K27ac	E13.5	ENCFF194ORC	ENCFF117QRC
+2	H3K27ac	E13.5	ENCFF290ZNF	ENCFF248PGK
+1	H3K27ac	E14.5	ENCFF327VAO	ENCFF784ORI
+2	H3K27ac	E14.5	ENCFF902HAR	ENCFF002HZV
+1	H3K27ac	E15.5	ENCFF584JFB	ENCFF727QTS
+2	H3K27ac	E15.5	ENCFF707WKL	ENCFF182XFG

mouse/configs/SRR_H3K4me3.txt

+1	H3K4me3	E10.5	ENCFF124UYX	ENCFF157KEH
+2	H3K4me3	E10.5	ENCFF045IPK	ENCFF825AVI
+1	H3K4me3	E11.5	ENCFF760QYZ	ENCFF184CUE
+2	H3K4me3	E11.5	ENCFF717QDV	ENCFF376FGM
+1	H3K4me3	E12.5	ENCFF182ZPF	ENCFF203JQV
+2	H3K4me3	E12.5	ENCFF941QJZ	ENCFF058AUT
+1	H3K4me3	E13.5	ENCFF485UDC	ENCFF117QRC
+2	H3K4me3	E13.5	ENCFF124TAB	ENCFF248PGK
+1	H3K4me3	E14.5	ENCFF724DMU	ENCFF784ORI
+2	H3K4me3	E14.5	ENCFF665QBJ	ENCFF002HZV
+1	H3K4me3	E15.5	ENCFF258KCR	ENCFF727QTS
+2	H3K4me3	E15.5	ENCFF401BKM	ENCFF182XFG