Added a push dialog and a some UI niceties

Added a push dialog and a some UI niceties

Squashed commit of the following:

commit 1f5a6e4c6b4dd47500a2a26c50334b8d1f57997b
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 05:10:15 2007 -0800

Store splitter geometry so that settings are remembered across sessions

commit b0d249887a76fb01d14d5e241b5b0bbb895feaed
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 04:46:57 2007 -0800

Separated out the info display from the diff display

commit 59660cec1b28b1a0703092974f3303a05befba70
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 04:25:45 2007 -0800

Added proper cut/copy/paste/delete/undo/redo for the commit text

commit f16f7fa212e88829ce88a749d07e9dc116c2a728
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 04:25:16 2007 -0800

Removed unused fetch+rebase menu action (TODO later)

commit 2a05bb7b66175fd14592789a513a4d735097fb0f
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 04:01:49 2007 -0800

Show the remote URL in the push dialog

commit 30c59974cb5a5305eb7a4ef1291ddc3df9333d13
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 04:01:05 2007 -0800

Added a convenient grep function

commit bf7a9144632d9ed4a61edb2ce6cb2115b85a8230
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 04:00:14 2007 -0800

Correctly handle temp build files when creating tarballs

commit c5bf345be573a1e6d851a22e1bab5bb5682512bd
Author: David Aguilar <davvid@gmail.com>
Date:   Mon Dec 24 03:38:31 2007 -0800

Make ugit remember window geometry settings

Signed-off by: David Aguilar <davvid@gmail.com>