[ApacheDS] Schema subsystem primer for 1.5 moved to documentation

[Stefan Zoerner]

For those of you interested in the new schema subsystem which is part of 
ApacheDS 1.5 and a drastic improvement to its 1.0 counterpart:

I have moved the content of the little schema subsystem primer for 
ApacheDS 1.5 to the documentation available on the web:

http://directory.apache.org/apacheds/1.5/add-your-first-elements-to-the-schema.html

Thanks Ole for fixing several typos and bugs. Any feedback is still 
highly appreciated.

Greetings from Hamburg,
    Stefan