Documentation - Add upgrade step to increase version compatibility
Documentation - Mention clean vs test builds in update doc
CHANGELOG - Add items from 4.3.7
Unit tests - Add tests to check for routed/nonrounted ips
Perspectives - Fix check for non-routed ips

- Use 'for' instead of 'for in' so we don't have to filter out properties
- Convert regex strings to regex literals so the character escaping is easier
(fix a missing \ and ^ while we're at it)
CHANGELOG - Add notes for 4.3.8
install.rdf - Increase browser compatibility versions
Perspectives - Increment version for 4.3.8 release