add index to lane.acc
Merge pull request #261 from andrewjpage/add_index_to_lane_accession

add index to lane.acc
sometimes the pool fastq file can be picked up by the split reads method, explicity check for fastqs
dont delete pool so that job can be restarted
and in if statement
Merge pull request #262 from andrewjpage/reads_not_split_correctly

Reads not split correctly