Most significant changes:
-oldstatic is reintroduced as a module cache option
-the support for legacy paths for plugins is removed
Drop support for the legacy plug-in path.
Reintroduce oldstatic module cacheing. It is still used in JDocumentH…
…TML and I got a sneaking suspicion that removing i causes more issues than we are aware of.
Improve legacy for old, deprecated exceptions.
Reduce use of deprecated JLog methods.
Remove useless comments.
Improve deprecated logging.
Always use JLog::WARNING for deprecated notices.
Remove deprecated methods from JLog.