Started cleaning GUI code

Removed double use of layout in plannersWidget

Removed all Apply buttons
GUI Cleanup & Planner Options

Lots of little changes:
* Unified layout
* added reset functions to all widgets

Major changes in OptionsBox
* getOptions returns a dictionary of all options
* get and set functions for individual options
Merge pull request #32 from mas-group/GUI-cleanup

Gui cleanup: ready for presentation