spell check by 
Merge branch 'develop' of https://github.com/genomizer/genomizer-documentation into develop
Update exp_implementation.tex
added limitations
Merge branch 'develop' of github.com:genomizer/genomizer-documentation into develop
Move detailed limitations to an appendix
Merge branch 'develop' of https://github.com/genomizer/genomizer-documentation into develop
Update exp_server_configuration.tex
Remove the chapters testing and limitations

The chapters testing and limitations were removed because of lack of content.
The detailed descriptions of known problems have been moved to an appendix and
the reference to that appendix is now a short section in the implementation
section. Testing has been hidden until actually filled with content.