fix PCA plots to show more than one data point and one group
stop ENS ID lookup in refactor_reportingtools_table.rb if ID is not a valid ENS ID, return more clear error message instead of REST API return code
( {"error":"ID 'NANOZOOG1' not found"} -> Stopping ensembl stable ID lookup because NANOZOOG1 is not a valid ensembl ID. Continuing without lookup.)
refactor_reportingtools_table.rbif ID is not a valid ENS ID, return more clear error message instead of REST API return code ({"error":"ID 'NANOZOOG1' not found"}->Stopping ensembl stable ID lookup because NANOZOOG1 is not a valid ensembl ID. Continuing without lookup.)closes #203