[rules-dev] change "assert" to "insert"

We have been getting querries with regards to jdk assert collision and jboss rules assert, for this reason we are thinking of changing it to insert for 4.0. Further to that its causing language integrations issues for us as we expand pluggeable dialects. For this reason we are thinking of chaning assert to insert, this would be an api change and a language level change. I'd thought I'd throw this out to the community before we do it. This of course breaks backwards compatability. Mark