Final Fork Release

This release prepares the upcoming independent spiff++ release in a new repository, because there will be now way back to the origin spiff development repository. We will try to keep in sync with changes in spiff, but especially the latest change introducing the ! operator to dynaml expressions to be ignored (for new bosh templating) conflicts with the use of this operator as not operator in dynaml expressions. To allow a compaible way in spiff++ the indicator ((! ... )) will be supported to ignore the dynaml expression. If the not operator should be used at the beginning of a dynaml expression, please use an additional space for the exclamation mark or a bracketed expression.

Additionally new arithmetic operator usage is added for CIDRs to partition and shift network ranges.