Merged `be diff --dir DIR` functionality

diff --cc NEWS
index ab962d482cea377450ef76a9c33d883aaa41166f,19a4fe1c691e87795a64e33ebfa7a868b0c612fe..669bed2abdbea3bb4ab6c1fd5fed1d2688163583
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -1,12 -1,5 +1,13 @@@
- December 4, 2009:
+ December 4, 2009
 + * new commands:
 +   email-bugs
 + * broke `be comment --xml` out and extended into `be import-xml`
+  * added --dir option to `be diff'
 + * new XML format <be-xml>
 + * interfaces/email/interactive:
 +   * added support for [be-bug:xml] interface
 +   * improved security with restrict_file_access
 + * assorted cleanups, bugfixes, and optimizations
  
  November 17, 2009
   * new becommands: