[5] hotfixes

[Tim Funk]

One feature of enterprise ready software is the ability to apply small 
patches to an existing system. For example: if a single class (or a few 
classes) have an error and that is the only fix - it might be nice to deploy 
a jar (or jars) that have a higher classloader preference. (But not parent 
loading)

This might be nice for those who want bug fixes but they don't (or can't 
recompile everything) and need a bug fixed and can't wait for the next 
release. (Due to PHB syndrome)

The alternative is to make the unpack the jar into the classes dir. This can 
also be error prone when cleaning up if the user has their own classes.

Currently o.a.c.startup.ClassLoaderFactory just does a standard directory 
listing. It might be nice to have the directory listed sorted in some manner 
so files with certain attributes might be loaded first.

I was thinking of either
- sorting by date
- looking for hotfix-YYYY-MM-DDDD-hh-mm-ss.jar  (or similar) first and 
sorting those files by name so the newest ones get loaded first.

Comments?

-Tim

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