version 0.1.4 changes:

    tag registration change based on DRY principle - not necessary set close tag for branching tags, couse
    always opening tag has the same close tag. For example 'empty' tag is branching of 'for' tag and in a
    future there will be another tag 'query' that will have branching tag 'empty', so when adding the 'query'
    tag no need to update definition of 'empty' tag its 'closing' option will be updated on registration of
    `query` and 'for' tags.

    fix bug in ifchange->render