Add method that sequentially works the steps we have to do
before sending first presence
- Move Delimiter into own module
- Move Metacontacts into own module
- Rework the MAM Preference dialog
- Move MAM Preference dialog into a new gtk module
- Refactor all MAM code into own module
- Refactor the MAM code itself so we can easier test it in the future
- Add a misc module for smaller XEPs and move EME, Last Message Correction
Delay, OOB into it
- Add dedicated module for XEP-0082 Time Profiles