Fix ABySS easyconfigs as per #87

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
adjust source_urls for HMMER as per #87

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
adjust sanity_check_paths for HMMER as per #87

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
adjust source_urls for MEM as per #87

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
fix mpiBLAST with a patch as per #87

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>