Made the UI look quite a bit nicer (OS X 10.7 tested).

* Added link to website for updates
* Moved 'Slice…' button to the right as this more logically follows the
user's flow through the application
* Moved version information to the middle right under the App name (on
OS X anyway) as it is clearer what the version is referring to
* Added spacing between the buttons
* Removed colon after 'version' as this is the UI convention in about
boxes
* Changed 'Load' to 'Open' as this is the more commonly used term
* Truncated 'Configuration' to 'Config' to save space, and I believe it
is still clear what it means
* Added open and save config to File menu as this is more conventional
location
* Simplified some wording
* Rephrased the tabs to be more succinct, I believe they still make
sense
* Fixed a spelling
* Replaced '…' with proper ellipses character

lib/Slic3r/Config.pm

@@ -9,12 +9,12 @@ our $Options = {
 
     # miscellaneous options
     'notes' => {
-        label   => 'Configuraton notes',
+        label   => 'Configuration notes',
         cli		=> 'notes=s',
         type    => 's',
         multiline => 1,
-        width   => 350,
-        height  => 300,
+        width   => 213,
+        height  => 150,
         serialize   => sub { join '\n', split /\R/, $_[0] },
         deserialize => sub { join "\n", split /\\n/, $_[0] },
     },
@@ -73,7 +73,7 @@ our $Options = {
         type    => 'bool',
     },
     'gcode_comments' => {
-        label   => 'Verbose GCODE (comments)',
+        label   => 'GCODE comments',
         cli     => 'gcode-comments',
         type    => 'bool',
     },