[#40187689] Add migrations for Hiseq 2500
[#40187689] Add missing tasks to pipeline
[#40187689] Add 2500 to Illumin A + B
[#40187689] Update seeds for Illumina-A and B
[#40187689] Add HiSeq 2500 single ended
[#40187689] Correct steps down migration
[#40187689] Use paired end request type
[#40187689] Adjust tasks for pipelines
[#40187689] Add flowcell descripto earlier
[#48187689] Correct case issue
[#40187689] Include flowcell event in search
Merge pull request #734 from JamesGlover/40187689_new_pipeline_for_upgraded_hiseq2500

40187689 new pipeline for upgraded hiseq2500