Log Message:
Update to 0.4.5.

Diffuse 0.4.5 - 2011-07-13
- fixed a bug in CVS and Subversion support that prevented Diffuse from \ 
displaying some removed files
- added syntax highlighting for JSON files
- added menu items and keyboard shortcuts for "First Tab" and \ 
"Last Tab"
- added "--line" command line option
- fixed a bug that caused deleted files to be ignored when using the '-m' option
- fixed a bug that incorrectly encoded pasted text if utf_8 was not specified in \ 
the Region Settings preferences
- state information is now stored in ~/.local/share/diffuse
- Diffuse now uses a patience diff-based algorithm to align lines
- added command line option to specify a label to display instead of the file name
- added preference to display the right margin
- added Cristian Marchi's Italian translation
- fixed a bug that could cause "Save As..." to fail with some user \ 
specified encodings