* Simplify POI selection
* Improve mouse logic
* Add colour cycles to the shader to show finer details. Works well with high iteration numbers
* Testing things...
* Actually fix zoom. Also allow user to reset camera with 'R'
* Reset max iterations
* Tidying & comments
* Revert to original if statement
* Make mouse logic more readable
* Style conventions
* Coding conventions - f postifx on floating points
* Missed a few f postfixes