Issue #87 - Altered the layout and minimum sizes of the tab controls to ensure better display on smaller screen resolutions.

NOTE: On a 1366x768 screen, only the Statistics tab is unable to show all controls without the need of a scroll bar. Is there any way that this page could be rearranged so that all control fitted? Perhaps display the 'Estimated numbers of High Priority Participants or Spectators' group vertically (on above the other) and move the group beside the Target Groups grid? The title of the group box might need to be shortened a little.
Issue #87 - Altered Schedule grid minimum sizes to ensure correct scrolling on smaller screen resolutions.