v1.12

-- Changes to SnirfClass code to comply with SNIRF spec after trying to load Ted's SNIRF_example.snirf file on https://github.com/fNIRS/snirf. Also found compliance issues in SNIRF_example file itself.
-- Added agument to updataParentGui function which says which application is updating parent gui which makes things clearer and more understandable.