Make docs consistent on the use of terminology

[stephanie0x00]

Describe the issue
The usage of OpenKAT requires a learning curve from the community. One of the reasons is the usage of terminology like: Mula, Rocky, bits, Whiskers, etc. while we also use some terms interchangeably. In practice we don't use Mula and Whiskers (as mentioned on the website and docs) but call them Scheduler and Normalizers. This makes it confusing for new users to get started.

In an ideal situation the user in the front-end shouldn't be confronted too much with all the different terms for our modules. As users just want to use the tool as quickly as possible instead of having to learn new things.

Let's try to keep KISS in mind. :)

How are we going to call the following items in the web-interface and/or docs.openkat.nl?

• Mula or Scheduler?
• Whiskers or Normalizers?
• Bits and nibbles?
• .... other?

Expected behavior
Consistent writing across all pages in the docs and web-interface on terminology to make OpenKAT easy to understand.