Logic window usability:

- Added a bit of more margin in bottom (for view pans)
- Made HOME option (view all) to show full width of editor, instead of zoom level 1:1.



git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@53817 954f8c5b-7b00-dc11-b283-0030488c597c