MIKE IO Beta 1 - Some bugs fixed

Lot's of changes...

Some methods have been deprecated, and we tried to add hints on how to change the code to achieve the same thing.

The upgrade to MIKE IO 1.0 will potentially require some changes to your code, but upgrading to next version will likely be very smooth.

Before the official release, install the beta version like this:
pip install mikeio==1.0b1

During the beta period we will focus on:

• Fixing bugs (please file an issue if you find a bug)
• Fixing possible inconsistent naming
• Improving documention
• Not adding any new features