operserv/core & content: improve staff interface

[siniStar7]

Improve the (Staff) OperServ Interface

content:

• content: Improve AKILL LIST output
• content: Improve AKILL add/del options
• content: add section to manage Services Operators, classes, etc.
• content: add section to manage (non-critical) modules

functionality:

• add: ability to manage Services Operators, classes, etc.
• add: ability to load or unload (non-critical) modules from web interface