increasing round off range as many test files only store 12 instead of the full 15 precision range. more fixes to the nightly test relative error computation and displaying previous test results

commit checker now polls the repo to see if any new commits are present, if they are they are individually queued and tested

added view of previous tests run and test rerun functionality, will reuse Finesse build if available and just process the kats

watcher thread now start the test thread when ready, stops the watcher trying to join the test thread before it is ready